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Nanocrystalline nucleus early-strength polyarylether water reducer mother liquor, and preparation method and compound liquid thereof

A polyarylene ether and early-strength technology, which is applied in the field of nanocrystalline core early-strength polyarylene ether water reducing agent mother liquor and its preparation method and compound liquid, can solve the problem of poor early-strength effect of cement and low durability of concrete. problems, to achieve the effect of high water reduction rate, reduced energy consumption and expenditure, and good concrete construction performance

Active Publication Date: 2021-02-05
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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  • Nanocrystalline nucleus early-strength polyarylether water reducer mother liquor, and preparation method and compound liquid thereof
  • Nanocrystalline nucleus early-strength polyarylether water reducer mother liquor, and preparation method and compound liquid thereof
  • Nanocrystalline nucleus early-strength polyarylether water reducer mother liquor, and preparation method and compound liquid thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049](1) Preparation of mother liquor of nano-crystal core early-strength polyarylether water-reducer: at 30°C, mix 80 parts (parts by weight, the same below) of polyarylether water-reducer, 2 parts of sodium silicate, 0.5 part Sodium thiocyanate, 2 parts of epichlorohydrin by-products and 11.5 parts of deionized water are put into the reactor and stirred evenly, and the shear stirring speed is 3500r / min; Drop into the reactor for 10 minutes, then drop 1 part of the auxiliary dispersion component into the reactor for 5 minutes, and then increase the shear stirring speed to 6000r / min and continue shearing for 5 minutes to obtain the nanocrystalline core early-strength polyarylene Ether superplasticizer mother liquor.

[0050] (2) Preparation of compound solution (by weight): 20 parts of mother liquor of nano-crystal core early-strength polyarylether water reducer, 2 parts of epichlorohydrin by-product, 0.5 part of N,N-dimethyl Acetamide and 77.5 parts of deionized water are c...

Embodiment 2

[0060] (1) Preparation of mother liquor of nano-crystal core early-strength polyarylether water reducer: at 80°C, mix 85 parts (parts by weight, the same below) of polyarylether water reducer, 3 parts of potassium silicate, 2 parts Potassium thiocyanate and 3 parts of epichlorohydrin by-products were put into the reactor and stirred evenly, the shear stirring speed was 5000r / min, and 4 parts of calcium thiosulfate aqueous solution with a mass concentration of 25% were dropped into the reactor in 20min , and then drop 3 parts of dispersing components into the reactor in 10 minutes, and then increase the shear stirring speed to 7000r / min and continue shearing for 10 minutes to obtain the nano-crystalline core early-strength polyarylether water reducer mother liquor.

[0061] (2) Preparation of compound liquid (by weight): 30 parts of nano-crystal core early-strength polyarylether water reducer mother liquor, 3 parts of epichlorohydrin by-products, 2 parts of ammonium sulfate and...

Embodiment 3

[0071] (1) Preparation of mother liquor of nano-crystal core early-strength polyarylether water-reducer: at 50°C, 82 parts (parts by weight, the same below) of polyarylether water-reducer, 2.5 parts of sodium metasilicate, 1 Part of sodium sulfate, 2.5 parts of epichlorohydrin by-products and 6.5 parts of deionized water are put into the reactor and stirred evenly, and the shear stirring speed is 4000r / min, and 3.5 parts of mass concentration are 20% calcium thiosulfate aqueous solution in 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 shear stirring speed to 6500r / min and continue shearing for 8 minutes to obtain the nanocrystalline core early-strength poly Aryl ether superplasticizer mother liquor.

[0072] (2) Preparation of compound solution (by weight): 25 parts of nano-crystal core early-strength polyarylether water reducer mother liquor, 2.5 parts of epichlorohydrin by-...

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Abstract

The invention discloses a nanocrystalline nucleus early strength type polyarylether water reducer mother liquor which comprises the following components in parts by weight: 80-85 parts of a polyarylether water reducer, 2-3 parts of a silicon-based component; 0.5-2 part of a crystal nucleus stabilizer; 2-3 parts of an epoxy chloropropane by-product; 3-4 parts of a calcium-based component aqueous solution; 1-3 parts of a dispersion assisting component; and the balance of deionized water. Compared with the prior art, the water reducer mother liquor has the advantages of 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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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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