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Mother liquor of nano-crystal core early-strength polyarylether water-reducer and its preparation method and compound liquor

A technology of polyarylether and water reducer, which is applied in the field of nano crystal core early strength polyarylether water reducer mother liquor and its preparation method and compound liquid, which can solve the problems of poor early strength effect of cement and low durability of concrete problem, achieve the effect of reducing consumption and cost

Active Publication Date: 2022-03-25
重庆富典建筑工业化制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a mother liquor of nano-crystal core early-strength polyarylether water-reducer to solve the problem of poor early-strength effect of cement in the hydration process and The problem of low durability of concrete

Method used

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  • Mother liquor of nano-crystal core early-strength polyarylether water-reducer and its preparation method and compound liquor
  • Mother liquor of nano-crystal core early-strength polyarylether water-reducer and its preparation method and compound liquor
  • Mother liquor of nano-crystal core early-strength polyarylether water-reducer and its preparation method and compound liquor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050](1) Preparation of nanocrystalline core early-strength polyarylene ether water-reducing agent mother liquor: at 30 ° C, 80 parts (weight parts, the same below) polyarylene ether water-reducing agent, 2 parts of sodium silicate, 0.5 parts of Sodium thiocyanate, 2 parts of epichlorohydrin by-products and 11.5 parts of deionized water were put into the reactor and stirred evenly, and the shear stirring speed was 3500r / min; Drop into the reactor for 10 minutes, then drop 1 part of the auxiliary dispersing component into the reactor for 5 minutes, and then increase the shearing and stirring speed to 6000r / min and continue to shear for 5 minutes, that is, the nanocrystalline core early-strength polyarylene is obtained. ether water reducing agent mother liquor.

[0051] (2) Preparation of compound solution (by weight): 20 parts of nanocrystalline core early-strength polyarylene ether superplasticizer mother liquor, 2 parts of epichlorohydrin by-product, 0.5 part of N,N-dimethyl...

Embodiment 2

[0061] (1) Preparation of nanocrystalline core early-strength polyarylene ether water-reducing agent mother liquor: at 80 ° C, 85 parts (weight parts, the same below) polyarylene ether water-reducing agent, 3 parts of potassium silicate, 2 parts of Potassium thiocyanate and 3 parts of epichlorohydrin by-products were put into the reactor and stirred evenly, the shearing stirring speed was 5000r / min, and 4 parts of calcium thiosulfate aqueous solution with a mass concentration of 25% were dropped into the reactor at 20min Then, 3 parts of auxiliary dispersing components were dropped into the reactor for 10 minutes, and then the shearing and stirring speed was increased to 7000r / min and the shearing was continued for 10 minutes to obtain the nanocrystalline core early-strength polyarylene ether water reducer. mother liquor.

[0062] (2) Preparation of compound solution (by weight): 30 parts of nanocrystalline core early-strength polyarylene ether superplasticizer mother liquor, ...

Embodiment 3

[0072] (1) Preparation of nanocrystalline core early-strength polyarylene ether water-reducing agent mother liquor: at 50 ° C, 82 parts (weight parts, the same below) polyarylene ether water-reducing agent, 2.5 parts of sodium metasilicate, 1 Parts of sodium sulfate, 2.5 parts of epichlorohydrin by-products and 6.5 parts of deionized water were put into the reactor and stirred evenly. The shear stirring speed was 4000r / min. Drop into the reactor for 15 minutes, then drop 2 parts of the auxiliary dispersing components into the reactor for 8 minutes, and then increase the shearing and stirring speed to 6500r / min and continue to shear for 8 minutes to obtain the nanocrystalline core early strength polymer. Aromatic ether water reducing agent mother liquor.

[0073] (2) Preparation of compound solution (by weight): 25 parts of nanocrystalline core early-strength polyarylene ether superplasticizer mother liquor, 2.5 parts of epichlorohydrin by-product, 1 part of pAM-DMC and 71.5 pa...

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Abstract

The invention discloses a mother liquor of nano crystal core early-strength polyarylether water reducer, which comprises the following components according to the total weight of 100 parts: 80-85 parts of polyarylether water reducer; silicon-based components 2-3 parts; 0.5-2 parts of crystal nucleus stabilizer; 2-3 parts of epichlorohydrin by-products; 3-4 parts of calcium-based component aqueous solution; 1-3 parts of auxiliary dispersion components; deionized water balance; Compared with the prior art, the present invention has good stability, no retarding effect and high water reducing rate.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to a mother liquor of a nano-crystal nucleus early-strength polyarylether water-reducer, a preparation method thereof, and a compound liquor. Background technique [0002] The country has comprehensively considered several factors such as the quality stability of large-flow cast-in-place concrete projects, energy and manpower consumption, and environmental protection, and is currently vigorously promoting the integrated project of "prefabricated buildings"; the supporting projects include sponge city construction , The construction of urban underground comprehensive pipe gallery; this requires different concrete components such as laminated panels, wall panels, segments, beams and pipe piles to have high early strength and short duration under the premise of ensuring normal construction performance. Set time, in order to save energy costs and improve the cycle rate and pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/32C04B103/30
CPCC04B40/0039C04B24/32C04B2103/302C04B22/08C04B22/14C04B24/005C04B24/04C04B2103/408C04B22/124C04B22/142C04B22/147C04B24/2652
Inventor 逄建军钟明云李文科钟国才徐美清闵书孟
Owner 重庆富典建筑工业化制品有限公司
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