181results about How to "With micro-expansion" patented technology

The invention discloses a construction material produced from industrial residue, aims to provide a construction material having the advantages of light weight, sound insulation, heat insulation, low cost, fire resistance, dense products, high rigidity and the like, and solves the problems with land occupation and pollute environment of phosphate slag and phosphogypsum at the same time. the invention is realized through the following technical scheme: phosphate slag and phosphogypsum are used as raw materials for producing the construction material, which comprises the following components by the weight part: 35 to 65 parts of phosphate slag, 10 to 40 parts of phosphogypsum, 5 to 15 parts of lime, 15 to 28 parts of cement, 0.1 to 0.4 part of light aggregate, 0.02 to 0.05 part of soluble glass, 0.02 to 0.05 part of water-reducing agent, 0 to 0.004 part of retarding agent, 0 to 0.005 part of early-strength admixture, and 0 to 0.008 part of foam killer; the components are weighed by the formula weight part and added to a blender; water is added to the blender with the water-to-material proportion being 4 to 10 and mixed evenly with the materials; and the solution is cast into a die and natural air dried after molding. Dies with different structures can be used according to purposes to conduct cast molding. The construction materials such as wall plates, guardrail decoration pillars, door and window sleeves, vase sleeves and the like can be produced.

The invention discloses a high fluidity grouting material and a production method thereof. The high fluidity grouting material comprises the following components in percentage by weight: on the basis of 100 percent of total amount, 60 to 96 percent of conventional portland cement, 1 to 20 percent of calcite powder, 1 to 20 percent of a mineral modifying component, and 2 to 18 percent of swelling agent, wherein measuring on the basis of using the total amount of four substances as base number, 0.01 to 4 weight percent of high efficiency slushing agent and 0.0005 to 1 weight percent of plasticity swelling agent are added in the mixture of the four substances. The high fluidity grouting material can be made of raw materials mixed by adopting a dual-shaft paddle non-gravity high-efficiency mixer. The material has simple industrialized production process and stable product quality, adopts the water-cement ratio of between 0.24 and 0.28, is evenly blended by water with neutral pH value, and has the advantages of high fluidity, no bleeding, no segregation or layering, slight swelling, easy pump delivery, good durability and the like after the material is uniformly mixed by water.

The invention provides a high-strength micro-expansive grouting material and its preparation method. Raw materials of the high-strength micro-expansive grouting material comprise Portland cement having a compressive strength of above 42.5MPa, sulphoaluminate cement or aluminous cement having a compressive strength of above 42.5MPa, a calcium sulphoaluminate expanding agent, quartz sand or corundum or iron tailings, an organic silicon antifoaming agent, a polycarboxylate superplasticizer, calcium formate or lithium carbonate, sodium gluconate, and methyl cellulose ether or hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether. Compared with present cement-based grouting materials treating the sulphoaluminate cement and the aluminous cement as main cementing materials, the high-strength micro-expansive grouting material, which is obtained through treating the Portland cement as a main cementing material component, carrying out ultrafine crushing of the cementing material component via an ultrafine crushing technology, and processing, has the characteristics of high early-stage strength, excellent fluidity, increased long-term strength, and good durability; and compared with traditional epoxy mortars, the high-strength micro-expansive grouting material has the characteristics of micro-expansion, simple and fast construction, non-toxicity, and harmlessness.

The invention relates to a method of using industrial waste residues, such as steel slag, blast furnace slag, and the like as main raw materials to produce a mine cementation filling material with a micro-expansion effect, which belongs to the field of environmental protection and mine filling. Aiming at the difficult problems that the cement amount required for cemented filling is large, filling cost is high, filling materials are easy in bleeding and difficult in roof-contacted filling at present, the invention provides a cementing material, which uses 30%-80% of the steel slag mixed with 15%-60% of slag and 5%-15% of desulfurized gypsum to be as an activator to form a hydraulic cementing material in a mixing way, and the hydraulic cementing material completely replaces cement as a cementing agent. The steel slag-slag full-tailing mine filling material which is prepared by the cementing material has micro-expansibility and good fluidity, compressive strength after 28 days can reach high up to 14.3Mpa, and the performance requirement of mine filling and roof-contacted filling on the compressive strength can be satisfied.

The invention discloses concrete for a steel reinforced concrete combined structure with C160 strength level. The concrete is composed of cement, fine aggregate, coarse aggregate, water, a concrete super plasticizer, a defoaming agent, silica fume, fly ash and an activator according to a ratio of 468:782:1116:108:16:1:65:117:6. The preparation method is as follows: firstly, uniformly mixing the concrete super plasticizer and the activator in weighed water to obtain a mixture, sequentially adding 1 / 3 of total dosage of the fine aggregate and the mixture in a stirring machine according to a weight ratio, and stirring; adding 1 / 3 of total dosage of the coarse aggregate and the mixture and stirring; and adding the cement, the silica fume and the fly ash, and stirring; and adding the defoaming agent and the rest mixture, stirring and discharging. The concrete can greatly perfect the adhesive property between section steel and the concrete under a natural state, effectively play the respective mechanical properties and mutual cooperative working performance of the steel and the concrete and greatly improve the carrying capacity, application performance and durability of the structural member, thereby having good high-volume stability and economical efficiency.

The invention belongs to semi-silica refractory materials, and in particular relates to a pyrophyllite brick and a preparation method thereof. The pyrophyllite brick is prepared by mixing a pyrophyllite raw material, a pyrophyllite clinker, clay, an additive and a binding agent, and performing the processes of material preparing, aging, shaping, drying and sintering. The pyrophyllite brick prepared by the method has the characteristics of high load softening temperature, stable volume and slight expansion at an operating temperature, and can ensure that a brickwork is compact in structure, small in brickwork joint and good in integrity; and meanwhile, when the pyrophyllite brick is in contact with slag, because a high-viscosity liquid-phase 'enamel layer' formed on the surface, the pyrophyllite brick can block up slag infiltration, and the erosion resistance of the pyrophyllite brick is improved.

The invention discloses a pit backfill material and an application method thereof. The pit backfill material comprises cement, calcined activated coal gangue, steel slag powder, lime hydrate powder, phosphogypsum, an expanding agent, glass quartz sand tailings, machine-made sand, a water reducer, and modified starch ether. The material can be constructed through pumping only by adding water with 35-90% of the total weight on a building site and stirring according to requirements. The pit backfill material which is prepared from a large amount of industrial solid wastes in the invention and allows workability, water retention, fluidity and self-compaction fallibility to be good, compressive strength to be high, bonding strength and sulphate erosion resistance to satisfy relevant requirements, and slight dilatability to be possessed has the advantages of simple production technology, convenient application, waste utilization, energy saving, consumption reduction, low carbon, and good market prospect.

The invention discloses low-density micro-expansion early-strength channeling-preventive oil well cement slurry and a preparation method thereof. The density of the cement slurry is 1.05-1.55g / cm<3> and can be adjusted. The cement slurry is composed of oil well cement, lightening agents, stabilizing agents, early-strength agents, expansion agents, styrene-butadiene latex channeling-preventive agents, fluid loss agents, dispersing agents, defoaming agents and water, wherein the lightening agents are hollow glass micro beads, the stabilizing agent are superfine cement and micro silicone. The cement slurry is little in system free water, small in fluid loss amount, high in channeling-preventive performance, micro-expansion performance and mobility, good in slurry stability and adjustable in thickening time, has the advantages of being fast in low-temperature strength development, capable of preventing gas channeling and the like, and can be used for low-pressure leakage zones and low-pressure oil and gas reservoirs, and medium and low temperature region well cementation construction.

The invention relates to a grouting material for composite structure and prefabricated building node pouring. The grouting material is prepared from, by mass, 30%-40% of cement, 10%-20% of an early-strength mineral admixture, 25%-45% of quartz sand, 5%-15% of a superfine mineral admixture, 0.5%-5% of a composite additive and 5%-10% of fiber, and the superfine mineral admixture is two or three of microbeads, silica fume and nano-silicon dioxide. The composite additive comprises an expanding agent, a retarder, a defoaming agent, a reinforcing agent and a water reducing agent; the fiber is a mixture of steel fibers and organic fibers. The invention also discloses a preparation method of the grouting material, and the method comprises the following steps: mixing the components of the groutingmaterial into a dry mixture, packing and packaging, and the preparation method is simple. The grouting material has the advantages of micro-expansion, high filling property, ultrahigh strength, high ductility and high vibration resistance.