718 results about "Triisopropanolamine" patented technology

The invention discloses a concrete early-strength agent, which is characterized in comprising the following components according to weight percentage: inorganic salt early-strength component 35-55 percent, organic early-strength component 5-10 percent, water reducing component 15-25 percent, wherein the inorganic salt early-strength component is prepared by at least two among sulfate, carbonate, nitrate, and nitrite; the organic early-strength component selects any one among calcium formate, sodium acetate, calcium oxalate, triethanolamine, tri-iso-propanolamine and carbamide; the water reducing component selects one among naphthalenesulfuric acid type, melamine type and polycarboxylate type. The invention makes the concrete be coagulated and hardened rapidly under the condition of low temperature, so that the early strength of the concrete is greatly improved as well as later strength is ensured.

The invention relates to a low-temperature concrete early strength agent, which belongs to cement additives. The early strength agent consists of sodium metaaluminate, sodium silicate, sodium sulfate, sodium carbonate, lithium carbonate, lithium bromide, alkali metal chlorides, alkali metal hydroxides, zinc fluosilicate, magnesium fluosilicate, sodium fluosilicate, calcium fluoride, triisopropanolamine, a filtrate reducer, beta-naphthalene formaldehyde sulfonate polycondensate, ultrafine powder SiO2, ultrafine powder Al2O3, ultrafine powder Fe2O3, ultrafine powder CaO and ultrafine powder MgO. The early strength agent is mainly applied to winter concrete construction or low-temperature environmental emergency projects; when the early strength agent is used, the composition mixture is added into concrete according to 2 to 5 percent of the total weight of cement, water is added and then stirring is performed; and a cement block with the strength of 13.5MPa can be formed in a low-temperature environment at the ambient temperature of approximately 4 DEG C within 12 hours, a cement block with the strength of 18.5MPa can be formed within 24 hours and a cement block with the high strength of 30MPa can be formed within three days.

The invention discloses a silicate cement grinding aid and a preparation method thereof. The silicate cement grinding aid is prepared from the following main raw materials by weight: 3-6 parts of sodium hexametaphosphate, 2-5 parts of aluminum sulfate, 5-8 parts of tetra sodium salt of amino trimethylene phosphonic acid (ATMP.Na4), 4-6 parts of ethylene diamine tetra (methylene phosphonic acid) sodium, 38-45 parts of polymeric alkylol amine, 34-42 parts of triisopropanolamine, 8-12 parts of waste engine oil, 2-5 parts of sodium alpha-olefin sulfonate, 10-16 parts of sorbitol, 15-20 parts of diethylene glycol, 8-13 parts of polypropylene wax, 6-10 parts of oxidized polyethlene wax, 4-8 parts of lignite wax, 20-30 parts of odium thiosulfate, 12-18 parts of sodium thiosulfate and 15-20 parts of quicklime powder. The prepared silicate cement grinding aid has the advantages that the quality is stable, the effect is remarkable, the adding amount is small, the use is simple, and the adding is more convenient and reliable to control.

The invention relates to an enhanced liquid cement grinding aid capable of improving the grinding efficiency of a cement grinding mill and enhancing the strength of cement. The liquid cement grinding aid comprises the components with the weight percentages as follows: 10 to 20 percent of triethanolmine, 5 to 10 percent of triisopropanolamine, 3 to 5 percent of diethylene glycol, 2 to 5 percent of sodium formate, 2 to 5 percent of sodium acetate, 1 to 3 percent of sodium lignosulfonate, 10 to 20 percent of desugarized molasses, 5 to 10 percent of glycerin, and water.

The invention discloses sodium silicate sand with high wet-compressive strength and a preparation method thereof. The sodium silicate sand with high wet-compressive is prepared from the following raw materials in parts by weight: 55-75 parts of silica sand, 30-40 parts of carborundum, 10-15 parts of limestone, 5-8 parts of bentonite, 3-6 parts of bauxite, 4-7 parts of modified sodium silicate, 2-3 parts of Arabic gum powder, 1-2 parts of dioctyl phthalate, 3-4 parts of lithium slag powder, 2-3 parts of talcum powder, 1.5-2.5 parts of gypsum, 1-2 parts of triisopropanolamine, 0.5-1 part of stearic acid and 3-5 parts of water. The sodium silicate sand disclosed by the invention is high in wet-compressive strength, easy to draw and repair, so that process requirements of drawing and then curing are completely satisfied. Moreover, the sodium silicate sand has good mobility, low gas evolution rate, good gas permeability and good collapsibility, can be used for remarkably improving the quality of a casting piece and lowering the rejection rate of the casting piece.

The invention provides a liquid cement grinding additive, which comprises the following components in percentage by weight: 10 to 20 percent of tetrahydroxyethyl-ethylenediamine, 10 to 20 percent of ethoxyl-diethylenetriamine, 10 to 15 percent of diethylene glycol, 5 to 10 percent of polyethylene glycol, 2 to 5 percent of sodium tripolyphosphate, 3 to 5 percent of calcium lignosulphonate, 0 to 10 percent of tri-isopropanolamine, 0 to 8 percent of sodium gluconate, and the balance of water, wherein the molecular weight of the polyethylene glycol is between 200 and 400. As a preferred scheme of the invention, the content of the tri-isopropanolamine is between 5 and 10 percent, and the content of the sodium gluconate is between 5 and 8 percent. A cement and concrete admixture using the liquid cement grinding additive has good adaptability, can significantly improve the grinding efficiency of a grinding machine and improve the strengths of the cement in an early period and a later period by 2 to 4 MPa, or can reduce the clinker dosage by 4 to 8 percent and increase the adding volume of a mixed material by 4 to 8 percent in the cement under a condition of keeping the same cement strength grade.

The invention provides a super slump type polycarboxylate water reducing agent for bored pile concrete. The water reducing agent is in a liquid state and comprises the following ingredients: sodium oleate, water reducing type polycarboxylate plasticizer, slump type polycarboxylate plasticizer, hydroxyethylidene diphosphonic acid, 2-acrylamide-2-methylpropanesulfonic acid/itaconic acid/acrylic acid terpolymer, hydroxypropyl methyl cellulose or hydroxyethyl methyl cellulose, air entraining agent and triisopropanolamine. The super slump type polycarboxylate water reducing agent for bored pile concrete provided by the invention has the following beneficial effects that by using the super slump type polycarboxylate water reducing agent, the bored pile concrete is good in homogeneity, the static bleeding rate of the bored pile concrete can be generally less than 1%, stable working performance can be maintained within a long time span, meeting the working property of concrete after 0.5-5.0h can be met by adjusting the formulation and dosage and improving the compressive strength ratio of the concrete, and the 28 d strength can be more than 130% of that of benchmark concrete. The invention further provides a preparation method of the super slump type polycarboxylate water reducing agent for bored pile concrete.

The invention patent relates to an enhanced cement composite grinding aid, pertaining to a cement additive. The enhanced cement composite grinding aid has the following main ingredients in percentagesby weight: 45 percent to 90 percent of diethanol isopropanolamine, 10 percent to 30 percent of molasses, 5 percent to 20 percent of lignosulphonate, 0 percent to 15 percent of inorganic dispersant and 0 percent to 30 percent of water. The main ingredient of the grinding aid, diethanol isopropanolamine, is a substitute for trolamine and triisopropanolamine in respect of property and the property thereof is superior to single trolamine or triisopropanolamine grinding aid. The application of the enhanced cement composite grinding aid to cement production can effectively increase output per machine hour of a grinder, improve cement strength in early period and later period, and reduce cement production cost.

The invention relates to a deepwater cementing low-temperature early strength agent. The low-temperature early strength agent comprises the following components in percentage by weight: 33 to 66 percent of alkali metal bromides, 6 to 16 percent of sodium metaaluminate, 15 to 35 percent of alkali metal hydroxides, 8 to 15 percent of silicon dioxide and 0.8 to 1.5 percent of alcamines organics, wherein the alkali metal bromides are a mixture of one, two or more of NaBr, KBr and LiBr; the alkali metal hydroxides are NaOH, KOH or a mixture of the NaOH and KOH; and the alcamines organics are triethanolamine, triisopropanolamine or a mixture of the triethanolamine and triisopropanolamine. The deepwater cementing low-temperature early strength agent has small influence on rheological behaviour of cement paste at low temperature, can prompt the cement paste to be solidified rapidly at low temperature and reach higher early strength, shortens the thickening time of the cement paste at lower temperature and can well meet the requirements of the cementing construction of a surface casing under the conditions of low temperature, shallow gas and the like.

The invention provides a method for realizing simple and direct preparing of high-efficiency cement rubber additive. The method, which has lower cost and takes ammonia, propylene oxide (PO) and ethylene oxide (EO) as raw materials, comprises the following steps that: superfluous ammonia stream and PO stream are fed into a continuous reactor so as to continuously form a mixture containing isopropanolamine, diisopropanolamine and triisopropanolamine; liquid level inside the continuous reactor is maintained to ensure that the stream in the reactor undergoes outer circulation spraying through a circulating pump from the bottom to the top of the continuous reactor, and part of the stream is continuously fed into a flash tower so as to remove unreacted ammonia; then, the stream with ammonia removed is reacted with EO stream so as to continuously generate products. The method ensures that products do not need rectification separation and greatly reduce production energy consumption, thereby reducing the production cost of products.

The invention relates to an alkali-free liquid concrete setting accelerator and a preparation method thereof. The alkali-free liquid concrete setting accelerator is prepared from the following components in parts by mass: 30 to 60 parts of polyaluminium sulfate, 5 to 20 parts of magnesium sulfate, 5 to 10 parts of calcium formate, 1.0 to 3.5 parts of methylcellulose, 0.8 to 1.5 parts of polyacrylamide, 0.2 to 1.0 part of organic acid, 1 to 3 parts of triisopropanolamine, 0.15-1.08 parts of defoaming agent, 0.5-2.5 parts of hydrofluoric acid, 2 to 6 parts of aluminum hydroxide, 0.5-1.5 parts of 85%-concentration phosphoric acid and 30 to 50 parts of water. The alkali-free liquid concrete setting accelerator has the beneficial effects that the alkali-free liquid concrete setting accelerator provided by the invention does not contain alkali metal ions, and is free of corrosion and pungent smell, stable in quality, good in adaptability, low in mixing amount, high in condensation speed and high in strength.

The invention relates to an environment-friendly, high-efficient and composite liquid cement grinding aid and a preparation method thereof. The grinding aid is prepared from following materials: 1-20 parts of triethanolamine, 1-20 parts of triisopropanolamine, 10-20 parts of glycerol, 10-20 parts of molasses, 2-8 parts of propylene glycol, 3-6 parts of sodium tripolyphosphate, 3-8 parts of sodiumhexametaphosphate and 30-50 parts of water. The grinding aid of the invention has low toxicity, does not volatilize and has stable source, sufficient supply, simple processing and preparation and lowcost; the indexes meet standard requirement of JC/T667-2004 Cement Grinding Aid; after the cement is doped, the distribution and shape of the separated particles can be improved and no bad influence for cement quality exists; the yield and quality of the cement are good. The performance is stable, the price is low and the performance cost ratio is high. The adaptability is wide, the doping quantity is low, the grinding effect is improved, the free calcium oxide in the cement is reduced, and the early strength and long-term strength of the cement are improved.

The invention relates to concrete synergist. Components of the concrete synergist, mixed by weight, include 8%-12% of triisopropanolamine, 25%-35% of polymeric alkylol amine, 5%-15% of modified polycarboxylic acid water reducer, 25%-35% of black liquor extractive and water. The concrete synergist, which is prepared by means of scientific proportioning and mixing of all components, is non-poisonous, free of abnormal odor, green and healthy. When concrete added with the concrete synergist is compared with traditional concrete, a concrete grade is increased on the premise of the same consumption, and 10%-15% of cement consumption is reduced on the premise of the same grade, so that pumping resistance is small during conveyance, workability of the concrete is improved, the concrete is resistant to bleeding, concrete cracks are decreased, all components of the concrete are more disperse, and the concrete is integrally uniform after hardening.

Provided are a composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids and a preparation method therefor. The composite cement enhanced grinding aid is prepared from the following raw materials, by weight, 20-60% of amide polyamine polycarboxylic acids, 4-15% of triethanolamine, 2-12% of triisopropanolamine, 2-10% of diethanolisopropanolamine, 1.5-8.0% of diglycol, 1-6% of sodium lignosulfonate, 2.5-10.0% of sodium lauryl sulfate, 1-8% of waste molasses and 20-60% of water. The invention also comprises a preparation method for the composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids. The obtained composite cement enhanced grinding aid has obvious effects at aspects of raising the machine-hour output, increasing fluidity of materials in grinding and increasing cement strength, and has good adaptability with concrete admixtures.