Glue-powder pervious concrete and preparation method thereof

A technology of permeable concrete and rubber powder, applied in the field of building materials, can solve problems such as threatening human health, polluting the environment, occupying land resources, etc., and achieve the effect of promoting resource reuse, low elastic modulus, and strong toughness

Inactive Publication Date: 2017-03-15
重庆绿恒环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the increasing output of waste tires has caused my country's automobile industry to suffer from "black pollution". At the same time, waste tires have been stacked in the open air for a long time, which not only takes up a lot of land resources, but also seriously pollutes the environment and threatens human health.

Method used

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  • Glue-powder pervious concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Use the following components as raw materials to prepare rubber powder permeable concrete: cement 350 kg / m 3 1400 kg / m of coarse aggregate passing through a square hole sieve of 0.085-2.36mm 3 , admixture 7 kg / m 3 (Polycarboxylate superplasticizer accounts for 25 wt%, viscosity modifier accounts for 0.6 wt%; gluconate retarder accounts for 0.4 wt%, and the balance is water), fly ash and silica fume (the mass ratio of the two is 1 : 2) 20 kg / m 3 , waste tire rubber powder 10 kg / m 3 , Styrene-acrylic latex powder 4 kg / m 3 , methyl cellulose ether 0.35 kg / m 3 and water 100 kg / m 3 , the specific steps are:

[0030] 1) Add all cement, fly ash and silica fume, waste tire rubber powder, styrene-acrylic latex powder, methyl cellulose ether, 50% water and 70% admixture into a forced mixer, and stir for 40 s Slurry preparation.

[0031] 2) Then put the coarse aggregate into the slurry prepared in step 1) and continue to stir for 60s to carry out the slurry coating treatme...

Embodiment 2

[0034] The following components are used as raw materials to prepare rubber powder permeable concrete: cement 365 kg / m 3 1500 kg / m of coarse aggregate passing through a square hole sieve of 2.36-4.75mm 3 , Admixture 8.65 kg / m 3 (naphthalene-based water reducer accounts for 15 wt%, viscosity modifier accounts for 0.8 wt%; gluconate retarder accounts for 0.6 wt%, and the balance is water), silica fume 24 kg / m 3 , waste rubber powder 27 kg / m 3 , Acrylic powder 5 kg / m 3 , ethyl cellulose ether 0.4 kg / m 3 and water 120 kg / m 3, the specific steps are:

[0035] 1) Add all cement, silica fume, waste tire rubber powder, acrylate rubber powder, ethyl cellulose ether, 40% water and 80% admixture to a forced mixer, and stir for 30 s to prepare a slurry.

[0036] 2) Then put the coarse aggregate into the slurry prepared in step 1) and continue to stir for 80s to carry out the slurry coating treatment.

[0037] 3) Add the rest of the water and admixture, and continue to stir for 70s ...

Embodiment 3

[0039] Use the following components as raw materials to prepare rubber powder permeable concrete: cement 425 kg / m 3 1750 kg / m of coarse aggregate passing through a round hole sieve of 5-10mm 3 , Admixture 7.9 kg / m 3 (Polycarboxylate superplasticizer accounts for 30 wt%, viscosity modifier accounts for 0.4 wt%; sucrose retarder accounts for 0.8 wt%, and the balance is water), mineral powder and silica fume 30 kg / m 3 (the mass ratio of the two is 1:2), waste rubber powder 20 kg / m 3 , Epoxy resin powder 6 kg / m 3 , hydroxyethyl cellulose ether 0.5 kg / m 3 and water 125 kg / m 3 , the specific steps are:

[0040] 1) Add all cement, mineral powder and silica fume, waste tire rubber powder, epoxy resin powder, hydroxyethyl cellulose ether, 70% water and 60% admixture into a forced mixer, and stir for 25 s for slurry body preparation.

[0041] 2) Put the coarse aggregate into the slurry prepared in step 1) and continue to stir for 100s to carry out the slurry coating treatment.

...

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Abstract

The invention discloses glue-powder pervious concrete and a preparation method thereof. The glue-powder pervious concrete contains the following ingredients in parts by mass: 300-450 parts of cement, 1,300-1,800 parts of coarse aggregates, 2-15 parts of additives, 20-50 parts of mineral admixture, 6-50 parts of waste / used tire rubber powder, 6-12 parts of cementing agent, 0.2-1.0 part of humectant and 100-150 parts of water. According to the glue-powder pervious concrete, the compressive strength, folding strength, porosity, coefficient of water permeability, wear resistance and the like are in line with technical regulations for pervious concrete pavements CJJ / T135-2009; meanwhile, the glue-powder pervious concrete also has the advantages of high toughness, high shock resistance, low elastic modulus, and the like, thereby playing a very good role in promoting the development of high-performance concrete technologies in the construction of sponge cities. The preparation method provided by the invention comprises three steps, i.e., carrying out mortar preparation, carrying out mortar coating treatment and carrying out stirring, thereby obtaining the finished product, and novel equipment is not required to be increased, so that the method is easy and feasible.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a rubber powder permeable concrete and a preparation method thereof. Background technique [0002] Permeable concrete is a kind of porous structure concrete mixed with lightweight aggregate, cementitious material, admixture and water. The internal coarse aggregate is wrapped by a layer of cement paste and bonded to each other to form a uniform powder honeycomb. Porous. Compared with ordinary concrete, the porous structure and high porosity of pervious concrete endow itself with good functions such as water permeability, air permeability, water purification, sound absorption and noise reduction. Especially in today's society where the economy is developing rapidly and the pace of urban construction is accelerating, on the one hand, permeable concrete can alleviate the "heat island phenomenon" caused by the decline in the temperature and humidity adjustment capabiliti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00284C04B2201/50C04B18/12C04B2103/302C04B2103/0068C04B2103/22C04B18/08C04B18/146C04B18/22C04B24/2676C04B24/383C04B18/14C04B24/2641C04B18/0427C04B24/281
Inventor 谭晓帆谢迁周顺鄂冉光建李琪肖新
Owner 重庆绿恒环保科技有限公司
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