Preparation method of high-strength waterproof easy plaster

A kind of beneficial glue and high-strength technology, which is applied in the field of preparation of high-strength waterproof and beneficial glue, can solve the problems of poor waterproof ability, tolerance ability and bonding strength, and achieve the advantages of small ion diffusion rate, optimized pore structure, and increased content. Effect

Inactive Publication Date: 2019-01-04
FOSHAN CHAOHONG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a preparation method of high-strength waterproof cement in view of the poor waterproof ability, tolerance and bonding strength of polymer cement on the market at present

Method used

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  • Preparation method of high-strength waterproof easy plaster

Examples

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Effect test

example 1

[0019] Put the waste concrete in a mechanical mixer and mechanically stir for 2 hours to obtain coarse aggregate, soak the coarse aggregate in a 5% polyvinyl alcohol solution for 8 hours, take it out, and dry it in an oven at a temperature of 50°C to constant weight and cooled to room temperature to obtain the modified coarse aggregate; in parts by weight, weigh 40 parts of modified coarse aggregate, 20 parts of cement, 1 part of acrylic rubber powder, 10 parts of silica sol, 5 parts Carbon fiber, 0.3 parts of hydroxyethyl methylcellulose, 70 parts of deionized water, and a mass fraction of 1% borax solution are mixed with silica sol and carbon fiber, and stirred at a stirring speed of 100r / min for 30min to obtain a composite sol. Mix the permanent coarse aggregate, cement and deionized water evenly to obtain a suspension. Add the borax solution with a mass fraction of 1% to the suspension at a stirring speed of 60r / min. Stir for 1 hour to obtain a base liquid. Mix the composi...

example 2

[0021] Put the waste concrete in a mechanical mixer and mechanically stir for 2.5 hours to obtain coarse aggregate, soak the coarse aggregate in a 5% polyvinyl alcohol solution for 9 hours, take it out, and place it in an oven at a temperature of 55°C Dry to constant weight and cool to room temperature to obtain modified coarse aggregate; in parts by weight, weigh 50 parts of modified coarse aggregate, 25 parts of cement, 3 parts of acrylic rubber powder, 14 parts of silica sol, 6 parts of 1 part of carbon fiber, 0.45 part of hydroxyethyl methylcellulose, 85 parts of deionized water, the mass fraction is 1% borax solution, the silica sol and carbon fiber are mixed, and the stirring speed is 200r / min and stirred for 35min to obtain a composite sol. The modified coarse aggregate, cement and deionized water were mixed evenly to obtain a suspension, and the mass fraction of 1% borax solution was added dropwise to the suspension at a stirring speed of 70r / min, and stirred for 2 hour...

example 3

[0023] Place waste concrete in a mechanical mixer for 3 hours to obtain coarse aggregate, soak the coarse aggregate in a 5% polyvinyl alcohol solution for 10 hours, take it out, and dry it in an oven at 60°C to constant weight and cooled to room temperature to obtain the modified coarse aggregate; in parts by weight, weigh 60 parts of modified coarse aggregate, 30 parts of cement, 5 parts of acrylic rubber powder, 18 parts of silica sol, 7 parts Carbon fiber, 0.6 parts of hydroxyethyl methylcellulose, 100 parts of deionized water, and a mass fraction of 1% borax solution were mixed with silica sol and carbon fiber, and stirred at a stirring speed of 300r / min for 40min to obtain a composite sol. Mix the permanent coarse aggregate, cement and deionized water evenly to obtain a suspension. Add the borax solution with a mass fraction of 1% to the suspension at a stirring speed of 80r / min. Stir for 3 hours to obtain a base liquid. Mix the composite sol and the base liquid, stir for...

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Abstract

The invention relates to a preparation method of a high-strength waterproof easy plaster, and belongs to the technical field of building materials. According to the method, nano-silicon dioxide is introduced by a sol mode, dispersion of nano-particles can be improved, cement particles are rapidly hydrated once the cement particles contact with water, a pH (potential of hydrogen) value of cement and ion strength are rapidly increased, so that sol is rapidly gelatinized, a calcium hydroxide crystal in cement paste easily grows along crystal surface as silicon is doped into the sol, a gel formedafter gelatinization of the sol is provided a special dispersing system, nano-silicon dioxide particles are mutually linked to form a space net structure with nano-micro-holes, the sol is added, a hole structure of the easy plaster can be optimize, calcium hydroxide crystal particles are refined, the content of calcium hydroxide is reduced, and the content of the hydrated calcium silicate gel is improved, so that mechanical property and durability of the easy plaster are improved. The prepared high-strength waterproof easy plaster is good in infiltration resistance, high in compressive strength and excellent in bonding strength and has a wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of high-strength waterproof cement, which belongs to the technical field of building materials. Background technique [0002] With the improvement of construction engineering quality requirements, problems such as wall waterproofing and wet base surface waterproofing have attracted more and more attention from the construction industry. Polymer cement is an effective means to solve the above problems. Polymer benefit cement is a kind of hydraulic cement-based waterproof bonding material that is made of a variety of inorganic chemical raw materials, supplemented by some high-molecular polymers, and added with a variety of admixtures evenly blended and polymerized. That is, it has the function of bonding, and it has the function of waterproof and anti-seepage after curing. It is mostly used for indoor waterproofing of buildings and bonding of ceramic tiles and stone materials. During the production of polym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B20/10C04B111/27
CPCC04B20/1033C04B28/02C04B2111/00293C04B2111/27C04B2201/10C04B2201/50C04B18/16C04B24/26C04B12/04C04B14/386C04B24/383C04B22/0013C04B40/0028
Inventor 刘菊花张鑫史志新
Owner FOSHAN CHAOHONG NEW MATERIAL TECH CO LTD
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