2978results about How to "Improve frost resistance" patented technology

The invention discloses epoxy emulsion modified quick repair mortar for concrete roads and bridges and a preparation method for the mortar, and belongs to the technical field of chemical construction materials. The prepared epoxy emulsion modified quick repair mortar for the concrete roads and bridges is good in construction performance, high in early strength and stable in later strength, does not shrink, and can be formed by selecting a proper formula according to different engineering requirements; the early strength is increased quickly, the repair speed is high, the traffic can be openedin 4 hours, the 4H compressive strength is more than 25MPa, and the 4H breaking strength is more than 3.5MPa; and the mortar is highly bonded to an old concrete base layer, and the positive pulling bonding strength in 28 days is more than 2.5MPa; and the mortar is good in freezing resistance and impermeability. The mortar mainly solves the problems of long traffic opening time, low bonding strength with the old concrete base material, poor durability and the like of the conventional quick repair mortar for the concrete roads and bridges.

The invention discloses a super-light foam cement concrete and a preparation method thereof. The super-light foam cement concrete comprises the following raw materials by weight parts: 9-36 parts of dead burnt magnesium oxides, 9-32 parts of dihydric phosphates, 0.5-7 parts of adjustable solidification agents, 6-25 parts of light burnt magnesium oxides, 0.5-7 parts of sulfur-containing components, 1-25 parts of industrial slag powder, 1-20 parts of kieselguhrs, 0.3-3.9 parts of waterproof agents, 0.2-1.7 parts of foam stabilizing agents, 1.0-8.9 parts of foaming agents and 25-90 parts of water. The preparation method of the high-performance super-light foam cement concrete comprises the following steps of: metering raw materials; preparing the slurry containing the foam stabilizing agents; uniformly mixing the foaming agents; pouring and standing by; foaming and expanding; coagulating and curing; and naturally maintaining. The super-light foam cement concrete has the advantages of light weight, high strength, heat preservation and insulation, stable volume, low production cost, energy-saving property, no environmental pollution, and the like. The super-light foam cement concrete is simple in production process and is especially suitable for the heat-insulating material of external building wall, roof and floor.

The invention discloses a method for preparing organic fertilizer from paper-making sludge. The materials such as paper-making sludge, amendment are mixed, subjected to high-temperature aerobic fermentation, post maturation and crushing, screened, and mixed with fertilizer of nitrogen, phosphorus, potassium and the like and medium and micro elements to prepare the organic fertilizer. The method has the advantages of simple process, easy operation, obvious innocuous effect, no environmental pollution and little nutrient loss; and the organic fertilizer prepared by the method is widely applied to industrial crops such as vegetables, fruit trees, Chinese herbal medicines, flowers and field crops such as wheat, corn, paddy rice.

The invention discloses pervious concrete and a construction method thereof. The pervious concrete comprises the following raw materials in percentage by weight: 13.1-15.9% of cement, 12.7-15.6% of river sand, 59.6-66.0% of stones, 3.7-3.9% of water and 4.5-5.0% of admixtures, wherein the admixtures comprise the following raw materials in percentage by weight: 45-50% of ultrafine mineral powder, 15-20% of heavy calcium carbonate, 15-20% of gypsum powder, 3-5% of polypropylene fiber, 5-10% of a polycarboxylate water reducing agent, 4.2-8.4% of adhesive powder and 2-5% of a pigment. The pervious concrete provided by the invention has relatively high water permeability, strength and durability; after the pervious concrete is applied to a practical engineering, the pervious concrete can greatly improve the problem of poor drainage of a hardened road surface, so that the development of the pervious concrete can be promoted.

A steel fibre reinforced high-strength concrete is prepared from cement, flyash, silicon ash, water, steel fibres, sand, broken stone and water-reducing agent through providing raw materials and mould, sequentially and proportionally mixing, stirring, pouring in mould, vibration, natural curing, demoulding, standard curing and inspection.

The invention relates to the field of building hollow bricks, in particular to a building hollow brick using industrial tailings and a preparation method thereof. The invention especially relates to a burning-free and steaming-free building hollow brick prepared by using industrial iron tailings, copper mine tailings, boric sludge and other industrial wastes and a preparation method thereof. The building hollow brick comprises the following raw materials in percentage by weight: 30-80% of industrial tailings, 5-30% of at least one of cement, fly ash and slag, 0-50% of aggregate, 0-35% of inorganic adhesive and 0-5% of other additives, wherein the water accounts for 3-20% of the total weight of at least one of cement, fly ash and slag and the industrial tailings. The hollow brick is obtained by adding at least one of cement, fly ash and slag to the industrial tailings, vibrating the mixture or molding the mixture under the pressure, releasing the mold after curing the mixture and then continuing to cure the mixture for 28 days or to a strength of more than 5 MPa at room temperature. The hollow brick provided by the invention has the advantages of high strength, good freezing resistance, capability of realizing industrial tailing resources and the like.

The invention relates to a functionally-graded cellular-concrete thermal-insulating material and a preparation method thereof. The functionally-graded cellular-concrete thermal-insulating material comprises a cellular-concrete thermal-insulating core, a plurality of air holes are uniformly distributed in the thermal-insulating material, and the surface of the cellular-concrete thermal-insulating core is wrapped with a functionally-graded layer; in the air holes of the functionally-graded cellular-concrete thermal-insulating material, the air hole in the cellular-concrete thermal-insulating core has a maximum diameter, then, the diameters and porosities of the air holes from the cellular-concrete thermal-insulating core to the outside are in a continuous graded change in a descending order, the thickness of the functionally-graded layer is 0.1-20 mm, the porosities of the air holes are in a continuous graded change in a range of 1- 95%, and the diameters of the air holes are in a continuous graded change in a range of 0.1-8 mm. According to the invention, the interior of the material is porous and thermal-insulating, and the surface of the material is high in density and strength, the mechanical strength of the material is gradually improved from the inside to the outside, and the thermal conductivity factor of the material is gradually reduced front the outside to the inside, thereby achieving an effect of integrating light weight, high strength, thermal insulation and fire prevention.

A total nutrient liquid fertilizer containing amino acids comprises, by weights, 6-12 parts of N, 1-6 parts of P, 3-10 parts of K, 1-3 parts of Ca, 1-3 parts of Mg, 9-13 parts of Zn, 2-10 parts of Mn, 1-2 parts of B, 0.5-2 parts of Cu, 0.2-0.5 parts of Mo, 3-10 parts of Fe, 10-15 parts of amino acids, 1-10 parts of a plant growth regulator, 2-5 parts of an organic chelating agent and 30-40 parts of water. The liquid fertilizer provides comprehensive nutrition for plants, enhances the freeze, drought, salt and disease resistance of the plants, enhances the synthesis and translocation of substances in the plants, promotes the formation of adenosine triphosphate (ATP), promotes the photosynthesis and protein synthesis, induces the formation of chlorophyll, promotes the cell protoplasm flow, improves the cell vitality and accelerates the growth of the plants.

The invention relates to a polycarboxylate composite water reducing agent suitable for low-cementitious material concrete and a preparation method thereof. The polycarboxylate composite water reducing agent suitable for the low-cementitious material concrete is characterized by comprising the following components in percentage by mass: 15 to 25 percent of polycarboxylic high-performance water reducing agent, 1 to 5 percent of retarder, 0 to 0.10 percent of defoaming agent, 0.01 to 0.3 percent of air entraining agent, 0.3 to 0.5 percent of preservative and the balance of water, wherein the mass solid content of the polycarboxylic high-performance water reducing agent is 40 percent. The polycarboxylate composite water reducing agent is applied to the concrete, and has the water reducing rate over 20 percent by comparing the concrete with reference concrete; and the prepared concrete has the advantages of good workability, no dissociation or bleeding, and good freezing resistance and infiltration resistance, and can be used for preparing concrete with various strength grades between C20 and C40.

The present invention belongs to a building mortar, and particularly relates to a mortar for concrete base surface repair, and a preparation method thereof. The mortar comprises the following raw materials by mass: 20-80 parts of silicate cement, 20-100 parts of sulphoaluminate cement, 80-190 parts of aggregate, 40-100 parts of a mineral admixture, 30-80 parts of an aqueous epoxy emulsion, 0.2-0.5 part of cellulose ether, 0.1-0.5 part of anti-cracking fibers, and 20-85 parts of water. The mortar of the present invention has characteristics of strong adhesion, excellent cracking resistance, excellent compression resistance, high bonding strength, and low price.

The invention discloses a high performance concrete with steel slag as an admixture and aggregate and a preparation method thereof. The concrete is composed of a cementing material, aggregate, a water reducer and mixing water. The cementing material is prepared by compounding, by mass, 50 to 80% of cement, 10 to 30% of superfine steel slag powder and 10 to 30% of superfine mineral slag, wherein the specific surface areas of the superfine steel slag powder and the superfine mineral slag are respectively controlled to be 400 to 600 m<2> / kg and 400 to 500 m<2> / kg. The aggregate is composed of broken stone, steel slag sand and river sand, wherein the particle size of the steel slag sand is 5 to 10 mm, the steel slag sand is used to partially replace the broken stone, and the addition amount of the steel slag sand is 20 to 50%. The high efficiency water reducer is dissolved in water in advance and then added with the mixing water. The preparation method provided by the invention is simple and can prepare concrete with a grade in a range of C20 to C60 and substantially improve the comprehensive utilization rate of the steel slag; and the prepared concrete has good work performance, mechanical properties, etc. and substantially improved endurance.

The invention provides an offshore wind power duct rack grouting material which comprises a dry material and water, wherein the dry material comprises the following components in percentage by mass: 25.0-40.0 percent of Portland cement, 1.0-5.0 percent of sulphoaluminate cement, 45.0-55.0 percent of quartz sand and 5.0-15.0 percent of admixture; the addition amount of the water is proper. The invention further provides a construction method of the offshore wind power duct rack grouting material. According to the offshore wind power duct rack grouting material and the construction method thereof, the material has the characteristics of high liquidity, high pumpability, super-high early-strength, ultrahigh strength, high durability, good water dispersion resistance, zero shrinkage and high fatigue resistance, can be conveyed by a rubber pipeline by adopting a pumping and grouting construction mode, is suitable for underwater grouting and is also suitable for grouting connection between the offshore wind power duct rack and steel pipe pile foundation.

The invention relates to a high-performance anti-cracking anticorrosive water reducing agent composition and a preparation method thereof. The anti-cracking anticorrosive waterproof anti-frost property of the water reducing agent composition is improved while the water-reducing rate of the water reducing agent composition is increased. Compared with a water reducing agent in the prior art, the water reducing agent composition has excellent combination property and an anti-cracking anticorrosion effect. When the water reducing agent composition is prepared, low energy is consumed, and when the water reducing agent composition is used, little pollution is caused.

The present invention belongs to the field of building material, and is especially one kind of no-shrinkage grouting filler with adjustable performance. The no-shrinkage grouting filler is hydraulic mixture comprising Portland cement and fly ash or silica fume as cementing material, quartzite, water reducing agent, expanding agent, water loss reducing agent, early settling preventing agent and early contract preventing agent. It has high flowability, no settling, no weeping, micro plastic expansion, no shrinkage, no cracking, adjustable performance, and no plastic settling and other excellent performance, and may be applied widely in installing large precise equipment, large area leveling, emergency repair engineering, etc.

The invention discloses a high-permeability liquid rubber spray coating, and relates to the technical field of spray coatings. The high-permeability liquid rubber spray coating comprises a component A and a component B, wherein the component A is anionic liquid rubber asphalt emulsion; the component B is a coagulant solution; the component A has the solid content of liquid rubber asphalt emulsion of 50-75 weight percent, and comprises the following components in percentage by mass: 1 to 35 percent of rubber emulsion, 10 to 50 percent of asphalt emulsion, 0.01 to 2 percent of anionic dispersing agent, 0.01 to 2 percent of anionic surfactant, 0.1 to 10 percent of fatty alcohol-polyoxyethylene ether, 0.1 to 10 percent of alkali resistant wetting agent OEP-70 and 0.1 to 10 percent of alkali resistant wetting agent AEP; and the component B is an aqueous solution at the concentration of 3-18 percent, which is prepared by mixing calcium chloride and composite aluminum-iron polymer in percentage by mass. The wetting agents are added into the spray coating, and the coating has high permeability and wider application range.

The invention discloses sulphoaluminate maritime work cement and a preparation method thereof. The sulphoaluminate maritime work cement comprises the following main raw materials in parts by weight: 50-80 parts of cement clinker, 8.0-20 parts of anhydrite, 0-30 parts of limestone, 0-30 parts of slag, 0.1-0.5 part of water reducing agent, 0.001-0.005 part of air entraining agent, 0.1-0.5 part of retarder and 2-5 parts of silicon powder. The preparation method comprises the following steps of: respectively smashing, grinding and homogenizing the sulphoaluminate cement clinker, the anhydrite, the limestone and the slag; then, burdening at a ratio, and evenly mixing; adding the water reducing agent, the air entraining agent, the retarder and the silicon powder; and mixing and homogenizing to obtain the product. The concrete mixed by the sulphoaluminate maritime work cement has the advantages of small bleeding rate and high slurry viscidity. The slurry has strong covering and supporting action on aggregate. The concrete keeps good homogeneity and has the advantages of hard and quick early strength, continuously-increased later strength, good slurry structure compactness and high volume stability and is convenient to use and operate for constructing.

A strong while emulsion is prepared from polyvinyl alcohol, sodium hydroxide, starch, hydrochloric acid, formaldehyde, urea and water. Its advantages are high resistance to freeze and water, high stability and adhesion, no irritative odor, and low cost.

The invention relates to an inorganic composite heat insulation material, which is prepared from the following raw materials in part by weight: 100 parts of common silicate cement, 10 to 30 parts of quick hardening sulfate aluminum cement, 10 to 30 parts of gypsum powder, 10 to 40 parts of admixture, 20 to 40 parts of mineral fiber, 150 to 200 parts of vitrified micro bubbles, 4 to 8 parts of re-dispersible latex powder, 2 to 4 parts of cellulose ether, 0.1 to 0.3 part of starch ether, 0.2 to 1.0 part of water reducing agent, 0.2 to 0.6 part of retarder, 1 to 3 parts of early strength agent, 0.5 to 3 parts of water repellent, and 0.02 to 0.06 part of air entraining agent. The raw materials are mixed uniformly to prepare dry powder, and the dry powder and water are mixed in a weight ratio of 1: (0.8-1.2) and stirred to form slurry for use. The inorganic composite heat insulation material has good workability, quick strength development, high construction efficiency, good adhesive property, low drying shrinkage, heat insulation, hydrophobic property, fire resistance and durability.

This invention relates to a dope combination. The film coating it formed is amorphous gelatinous substance, base unit is three-dimensional network formed by connection of silicon - oxygen tetrahedron and aluminium - oxygen tetrahedron. end product takes electrovalent bond and covalent bond as main, vander waas bond as complement, possess linkage structure of organic heavy polymer, and double property of inorganic polymer and organic polymer. The unique performance supple the insufficiency of organic high molecular polymer. It possesses favorable performance of acid-proof, alkali-proof, impervious, antifreeze, seawater resistance and high temperature resistance.

The invention provides a microbial sand-fixing dust depressor and a preparation method thereof. The microbial sand-fixing dust depressor comprises the following components in percentage by mass: 0.8-2.5% of microbial powder, 3.0-5.0% of urea, 8.1-10.1% of calcium chloride and the balance of deionized water, wherein the microorganism in the microbial sand-fixing dust depressor is bacillus pasteurii powder. The preparation method comprises the following steps: proportionally mixing the calcium chloride with the deionized water, stirring till the calcium chloride is completed dissolved, adding the urea, and after the urea is dissolved, adding the bacillus pasteurii powder till the bacillus pasteurii powder is completely dissolved, thereby obtaining a mixed solution, namely the microbial sand-fixing dust depressor. Compared with the traditional inorganic sand-fixing agent, the microbial sand-fixing dust depressor is high in permeability; compared with the traditional organic sand-fixing agent, the microbial sand-fixing dust depressor has the characteristics of high ageing resistance, simplicity in preparation, convenience in construction and the like. Proved by desert sample tests, the sand-fixing dust depressor is high in ageing resistance and wind erosion resistance and has unconfined compressive strength higher than 1MPa. Proved by raise dust sample tests, the sand-fixing dust depressor has a good dust fixing effect.

The invention provides potato-bread frozen dough and a preparation method thereof. The potato-bread frozen dough comprises the following components: potato powder and wheat flour, wherein the weight rate of the potato powder to the wheat flour is (10-40): (90-60). The preparation method comprises the following steps of: mixing the potato powder and the wheat flour, and adding water as well as an appropriate amount of yeast, sugar, salt, butter, eggs and the like into the obtained mixture so as to obtain dough; and then, after carrying out partitioning, forming and pre-fermenting on the dough, freezing the dough and then taking out the dough to carry out packing, and carrying out freezing storage on the dough. The potato-bread frozen dough (the viable count of yeasts in the frozen quality guarantee period is greater than or equal to 107 cfu / g) produced by using the method disclosed by the invention can be subjected to unfreezing, re-fermenting and baking so as to prepare fresh bread as required, and the technique facilitates the production management of bread and the freshness preservation of products; in addition, due to the addition of the potato powder, the nutritive value of bread is improved, the texture and taste of bread are improved, and the comprehensive utilization and development of potato processed by-products are facilitated, thereby having great significance in improving the additional values thereof.

The invention discloses a rapid-hardening high-belite calcium sulfoaluminate cement clinker and relates generally to a rapid-hardening high-belite calcium sulfoaluminate cement clinker and methods to use and to manufacture the clinker. The clinker of the present invention comprises 20% to 35% by weight of C4A3S 3% to 9% by weight of C4AF, 37% to 47% by weight of C2S, 0.5% to 4.6% by weight of f-Ca° and 14% to 26.3% by weight of CaSO4. The chemical compositions of the clinker are 12.9% to 16.1% by weight of SiO2, 12% to 19% by weight of Al2O3, 1% to 3% by weight of Fe2O3, 49% to 54% by weight of CaO and 12% to 18.43% by weight of SO3. It is manufactured by calcining, at a temperature of 1300° C.±50° C. in a rotary kiln, the raw meal, comprising 33% to 62% by weight of limestone, 10.5% to 28% by weight of fly ash, and 19% to 45% by weight of FGD gypsum. A group of rapid-hardening high-strength cements of various strength classes can be manufactured by mixing and grinding 26% to 97% by weight of clinker, 3% to 19% by weight of anhydrite and 0% to 55% by weight of granulated blast furnace slag.

An earth curing agent used in curing salinized soil with heavy salt is manufactured by ordinary silicate cement, water quenched blast furnace slag, fly-ash, active mineral doped material, lime hydroxides of alkali metal or alkali earth metal and chemical dispersing agent in proper proportion. The middle and strong salinized soil of sulfate can be cured effectively by doping 8%-12% earth curing agents.

The invention discloses a preparation method of a super-hydrophobic coating layer on an aluminum surface. The preparation method mainly comprises the following steps: (1) an aluminum piece is polished by an abrasive paper, is ultrasonically cleaned for 10 minutes by acetone and ethanol, is washed by distilled water to remove oil stains on the surface, and is dried in an oven; (2) the aluminum piece is dip in an acid etching agent for etching to obtain the aluminum surface with a micron rough structure; (3) the micron rough aluminum piece is dip in nanometer TiO2 particle solution, and is treated at high temperature to obtain the aluminum surface with a micron-nanometer composite rough structure; and (4) the aluminum surface with the micron-nanometer composite rough structure is treated by fluorine silane with low surface energy to obtain the aluminum surface with super-hydrophobic performance. The prepared super-hydrophobic aluminum piece is excellent in self-cleaning performance, fog resistance and ice covering resistance, and can be applied to field of ice covering prevention.

A cementing material is a cement whose main components are calcium phosphoaluminate, calcium aluminate and calcium phosphate. Its clinker contains such chemical components (wt%) as CaO (30-60), Al2O3 (17-50), SiO2 (1-15), P2O5 (10-30), Fe2O3 (1-8) and MgO (1-7). Its advantages are high and early strength, high refractory nature, and high compatibility with existing cement.

The invention discloses an anti-freeze aerated concrete brick. The anti-freeze aerated concrete brick is prepared from the following raw materials in parts by weight: 35-40 parts of fly ash, 15-20 parts of cement, 15-20 parts of wollastonite powder, 5-10 parts of modified straw ash, 2-4 parts of gypsum, 0.05-0.1 part of aluminum powder, 2-4 parts of urea, 0.01-0.03 part of oxyparaffin soap, 1-2 parts of sugar calcium, 4-6 parts of calcium formate, 0.1-0.5 part of polyethylene wax powder, 4-6 parts of calcium carbonate, 0.2-0.4 part of calcium nitrate, 0.1-0.2 part of sodium acetate and right amount of water.

The invention provides emulsified asphalt for a ballastless slab track in a severe cold region and a preparation method thereof. The emulsified asphalt comprises the following ingredients by mass portion: 55-65 portions of matrix asphalt or modified asphalt, 35-45 portions of water, 0.1-1.0 portion of stabilizer, 0-1.0 portion of thickening agent, 0-2.0 portions of pH regulator, 0.1-1.5 portions of interfacial modifier, 0.6-1.8 portions of cationic emulsifier, 0.4-1.2 portions of non-ionic emulsifier, 0-1.0 portion of optional amphoteric ionic emulsifier and 0-0.6 portion of mineral emulsifier, wherein the emulsifier amounts to 1.0-4.0 portions. The emulsified asphalt has the advantages of high stability, good thermal adaptability, wide material adaptability, strong adhesive force with aggregate and the like, does not significantly influence the hydration of cement after the emulsified asphalt is mixed with the cement and sand, and is suitable for the ballastless slab track, particularly the ballastless slab tracks of CRTSI type high speed railways, passenger transport lines and interurban railways in the severe cold region.

The invention discloses an aerated brick. The aerated brick is prepared from the following raw materials by the conventional process for preparing the aerated brick: 30 to 35 weight parts of iron ore tailing, 5 to 10 weight parts of cement, 10 to 15 weight parts of quick lime, 5 to 10 weight parts of modified nano powder, 5 to 10 weight parts of broken glass powder, 3 to 5 weight parts of gypsum, 0.05 to 0.1 weight part of aluminum powder, 0.002 to 0.008 weight part of Chinese honey locust powder, 0.03 to 0.08 weight part of tea seed cake powder, 0.003 to 0.005 weight part of soda ash, 0.5 to 0.8 weight part of calcium stearate, 0.3 to 0.5 weight part of zinc stearate, 0.01 to 0.03 weight part of calcium chloride, 0.05 to 0.1 weight part of white emulsion and an appropriate amount of water. By adding nano mineral powder, the volume weight of the brick, and the energy consumption are reduced; the brick is high in thermal insulation performance and sound insulation performance; and compared with the conventional aerated brick, the aerated brick has the advantage that the thermal insulation performance and the sound insulation performance are improved obviously. Meanwhile, the raw materials are mixed according to an optimized formula; and the intensity and the freezing resistance of the brick are improved obviously.

The invention discloses a light and color glazed tile for a building, which is obtained by the following steps: adding 0.4 to 0.6 kg of magnesium oxide to each kilo of a magnesium chloride solution; agitating the mixture for 6 to 8 minutes; successively adding 0.05 to 0.1 kg of magnesium silicate, 0.02 to 0.03 kg of urea-formaldehyde resin, 0.06 to 0.1 g of ammonium carbonate, 2 to 3 g of trisodium phosphate and 2 to 3 g of pigment; agitating the obtained mixture for 20 to 30 minutes; pouring the agitated mixture to a glass fiber cloth; scraping and compacting the poured mixture; and performing natural cure and drying to obtain the light and color glazed tile for the building. In the way above, the light and color glazed tile for the building has the advantages of smooth and clean surface, bright color, color retention, fracture resistance, compression resistance, thermal and cooling shock resistance, acid and alkali resistance, freezing resistance, light weight, low water absorption, good thermal insulation, good sound insulation and low cost.

The invention discloses basalt fiber concrete and a preparation method thereof, and belongs to concrete. The concrete consists of the following components in percentage by weight: 14-19 parts of cement, 29-39 parts of sand, 35-44 parts of stones, 1-4 parts of active admixture, 0.05-0.8 part of basalt short fiber, 0.05-1 part of other short fiber, 6-8.5 parts of water, 0.05-0.15 part of CTF synergist and 0.05-0.2 part of a water reducing agent. Through the addition of the basalt fiber that is in net-form distribution to the concrete, both toughness and anti-cracking performance of the concrete are effectively improved; the concrete, which is prepared depending on the proportions and by the preparation method, has the advantages that the maximum crack width is reduced by 44.8-89.7%, the average cracking area is reduced by 19.7-92.6%, the crack quantity in unit area is reduced by 22.7-25.2%, the total cracking area in the unit area is reduced by 1.7-94.5%, the frost resistance is enhanced by 37-50% and the shock resistance is improved by more than twice; the concrete can be used for effectively avoiding various defects of existing conventional concrete.