High-efficiency water reducer

A high-efficiency water-reducing agent and additive technology, applied in the field of concrete admixtures, can solve the problems of inability to meet concrete performance requirements, low water-reducing rate, poor fluidity, etc., and achieve improved fluidity and workability, high water-reducing rate, good fluidity

Inactive Publication Date: 2019-11-19
徐州巨龙新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water reducing agents currently used in the market have the disadvantages of low water reducing rate, poor fluidity, and low strength, which cannot meet the performance requirements of concrete.

Method used

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Experimental program
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specific Embodiment approach

[0014] A high-efficiency water reducer, which is made by mixing the following raw materials in parts by weight: β-naphthalene sulfonate formaldehyde condensate 45-65, polyethylene glycol monomethyl ether methacrylate 15-25, calcium lignosulfonate 20-30, ethylene oxide-propylene oxide copolymer 15-20, trehalose 3-5, silicone powder 1.8-2.8, shale ash 3-7, sodium bisulfite 3-5, polyethylene oxide 4.5 -9.5, aluminum tripolyphosphate 7-13, cocoyl diethanolamine 2.5-3.5, barium dinonylnaphthalene sulfonate 1.5-2.5, urotropine 2.5-3.5, additives 2.5-5.5.

[0015] β-naphthalene sulfonate formaldehyde condensate 50, polyethylene glycol monomethyl ether methacrylate 20, calcium lignosulfonate 25, ethylene oxide-propylene oxide copolymer 18, trehalose 4, silicone powder 2. Shale ash 5, sodium bisulfite 4, polyethylene oxide 7, aluminum tripolyphosphate 10, cocoamide diethanolamine 3, barium dinonyl naphthalene sulfonate 2, urotropine 3, additive 4.

[0016] The auxiliary agent is made ...

specific Embodiment

[0021] Specific embodiment: a kind of high-efficiency water reducing agent is formed by mixing the raw materials of the following weight (Kg): β-naphthalene sulfonate formaldehyde condensate 50, polyethylene glycol monomethyl ether methacrylate 20, lignin sulfonate Calcium acid 25, ethylene oxide-propylene oxide copolymer 18, trehalose 4, silicone powder 2, shale ash 5, sodium bisulfite 4, polyethylene oxide 7, aluminum tripolyphosphate 10, cocoyl Diethanolamine 3, barium dinonyl naphthalene sulfonate 2, urotropine 3, additive 4.

[0022] The auxiliary agent is made of the following raw materials in parts by weight: 9-14 magnesite, 2-5 magnesium humate, 2.5-4.5 ammonium benzoate, 5.5-11.5 sodium α-alkenyl sulfonate, phytic acid Ester 2-3, Isobutylene Triethoxysilane 2.5-5.5, Polyferric Chloride 4-9, Germanium Stone Powder 11-17, Titanium Dioxide 4-10, Myristyl Glucoside 1-3, Polyamide Wax 3-6 , lithium magnesium silicate 2-4, tea saponin 1-3.

[0023] The preparation steps o...

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Abstract

The invention provides a high-efficiency water reducer. The high-efficiency water reducer is prepared through mixing, by weight, 45-65 parts of a beta-naphthalenesulfonate-formaldehyde condensate, 15-25 parts of polyethylene glycol monomethyl ether methacrylate, 20-30 parts of calcium lignosulphonate, 15-20 parts of an ethylene oxide-propylene oxide copolymer, 3-5 parts of trehalose, 1.8-2.8 partsof silicone powder, 3-7 parts of shale ash, 3-5 parts of sodium bisulfite, 4.5-9.5 part sof polyoxyethylene, 7-13 parts of aluminum tripolyphosphate, 2.5-3.5 parts of coconut diethanolamide, 1.5-2.5parts of barium dinonylnaphthalenesulfonate, 2.5-3.5 parts of urotropine and 2.5-5.5 parts of an assistant. The water reducer of the invention has the advantages of high water reducing rate, good fluidity, obvious improvement of the fluidity and workability of concrete, significant early strength effect after final setting, great improvement of the strength of the concrete at all ages, and suitableness for various concretes.

Description

technical field [0001] The invention belongs to the field of concrete admixtures, in particular to a high-efficiency water reducer. Background technique [0002] Concrete admixtures, referred to as admixtures for short, refer to substances that are added to improve the performance of concrete before or during the mixing of concrete. Because admixtures can effectively improve the performance of concrete and have good economic benefits, they have been widely used in many countries, and their application in engineering has attracted more and more attention, becoming an indispensable material in concrete. Among them, the water reducer is the most important admixture in concrete. It can reduce the mixing water consumption and improve the concrete strength under the condition that the workability of concrete and the amount of cement remain unchanged; or under the condition that the workability and strength remain unchanged. Next, save the amount of cement. However, the water red...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B103/30
CPCC04B40/0039C04B2103/302C04B24/24C04B24/226C04B24/2647C04B24/18C04B24/281C04B24/10C04B24/42C04B14/108C04B22/147C04B24/32C04B22/16C04B24/124C04B24/22C04B24/128C04B22/066C04B24/04C04B24/16C04B24/003C04B22/12C04B14/00C04B22/06C04B24/287C04B22/08C04B24/38
Inventor 黄文朝
Owner 徐州巨龙新材料科技有限公司
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