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Colorful pervious concrete and preparation method thereof

A permeable concrete and colored technology, which is applied in the field of colored permeable concrete and its preparation, can solve the problems of low compressive strength of permeable concrete, small number of contact points, large particle size of coarse aggregate, etc., and achieve tight bonding and high compressive strength , the effect of increasing the bulk density

Active Publication Date: 2018-05-29
南通鸿基市政工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The permeable concrete in the prior art is mostly made of cementitious materials, coarse aggregate, trace (or no) fine aggregate, water, admixtures and admixtures according to a certain proportion, because the content of fine aggregate is very low , the particle size of coarse aggregate is large, the specific surface area is small, the number of contact points between aggregate particles per unit volume in the formed structure is small, the bonding area is small, the compressive strength of the formed permeable concrete is low, and the service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Coarse-diameter gravel: 80 parts

[0043] Fine-diameter zeolite: 9 parts

[0044] Cement: 15 parts

[0045] Water: 6 parts

[0046] Admixture: 4 parts

[0047] Pigment: 2 parts

[0048] Modified wood fiber: 0.5 parts

[0049] Among them, the coarse-diameter crushed stone contains 24 parts of recycled aggregate, and the recycled aggregate with a particle size of 9-14mm is selected; the particle size of the fine-diameter zeolite is 2-5mm; the modified wood fiber is grafted modified wood Fiber / polycaprolactone composite material; additives include 1 part of polycarboxylate water reducer, 1.5 parts of rubber powder, 1 part of silicon powder, and 0.5 part of calcium carbonate; the pigment is iron oxide organic pigment.

[0050] Its preparation method is:

[0051] S1: Mix 15 parts of cement and 2 parts of pigment evenly to obtain a colored cement mixture;

[0052] S2: Mix 80 parts of coarse-diameter gravel, 6 parts of water, 4 parts of admixture and colored cement mixt...

Embodiment 2

[0056] Coarse-diameter gravel: 80 parts

[0057] Small-diameter zeolite: 11 parts

[0058] Cement: 15 parts

[0059] Water: 6 parts

[0060] Admixture: 4 parts

[0061] Pigment: 2 parts

[0062] Modified wood fiber: 0.5 parts

[0063] Among them, the coarse-diameter crushed stone contains 24 parts of recycled aggregate, and the recycled aggregate with a particle size of 9-14mm is selected; the particle size of the fine-diameter zeolite is 2-5mm; the modified wood fiber is grafted modified wood Fiber / polycaprolactone composite material; additives include 1 part of polycarboxylate water reducer, 1.5 parts of rubber powder, 1 part of silicon powder, and 0.5 part of calcium carbonate; the pigment is iron oxide organic pigment.

[0064] Its preparation method is:

[0065] S1: Mix 15 parts of cement and 2 parts of pigment evenly to obtain a colored cement mixture;

[0066] S2: Mix 80 parts of coarse-diameter gravel, 6 parts of water, 4 parts of admixture and colored cement mi...

Embodiment 3

[0070] Coarse-diameter gravel: 80 parts

[0071] Fine-diameter zeolite: 13 parts

[0072] Cement: 15 parts

[0073] Water: 6 parts

[0074] Admixture: 4 parts

[0075] Pigment: 2 parts

[0076] Modified wood fiber: 0.5 parts

[0077] Among them, the coarse-diameter crushed stone contains 24 parts of recycled aggregate, and the recycled aggregate with a particle size of 9-14mm is selected; the particle size of the fine-diameter zeolite is 2-5mm; the modified wood fiber is grafted modified wood Fiber / polycaprolactone composite material; additives include 1 part of polycarboxylate water reducer, 1.5 parts of rubber powder, 1 part of silicon powder, and 0.5 part of calcium carbonate; the pigment is iron oxide organic pigment.

[0078] Its preparation method is:

[0079] S1: Mix 15 parts of cement and 2 parts of pigment evenly to obtain a colored cement mixture;

[0080] S2: Mix 80 parts of coarse-diameter gravel, 6 parts of water, 4 parts of admixture and colored cement mix...

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Abstract

The invention relates to the technical field of pervious concrete preparation, in particular to colorful pervious concrete. Concrete in each stere is prepared from the following raw materials of, in parts by weight, 80-120 parts of coarse-diameter gravels, 9-15 parts of fine-diameter zeolite, 15-30 parts of cement, 6-8 parts of water, 4-6 parts of additives, 2-4 parts of painting and 0.5-1.5 partsof modified wood fibers. According to the technical scheme of the preparation method of the colorful pervious concrete, fine-diameter zeolite is added to increase the accumulation density of aggregates, the contact points among the aggregates are increased, accordingly the compressive strength of the prepared pervious concrete is improved, meanwhile, zeolite has a special porous structure, and thus the porosity of the pervious concrete is improved further. The modified wood fibers are added into the pervious concrete as well, so that adhesion among granules of the pervious concrete is tighter, the sedimentation rate of cement paste is lowered, meanwhile, the modified wood fibers can bear part of tensile stress, and accordingly the breaking strength of concrete is improved.

Description

technical field [0001] The invention relates to the technical field of permeable concrete preparation, more specifically, it relates to a colored permeable concrete and a preparation method thereof. Background technique [0002] Colored concrete is called drainage concrete and ecological permeable concrete, and permeable floor is a kind of porous lightweight concrete mixed with aggregate, 42.5 cement, water-permeable admixture, water, color enhancer and stabilizer in a certain proportion. High-quality new environmentally friendly floor covering materials. Permeable concrete is a layer of thin slurry wrapped on the surface of coarse aggregate and bonded to each other to form a honeycomb, which allows rainwater to flow into the ground and effectively replenishes groundwater; and can effectively eliminate the hazards of environmental pollution such as oil compounds on the ground; It is colorful and integrated with the landscape, making the construction of the urban environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00284C04B2201/50C04B14/02C04B14/047C04B18/26C04B24/283C04B2103/302C04B2103/54C04B14/06C04B14/28
Inventor 陆卫东余莉钱峰峰刘双玉朱方敏
Owner 南通鸿基市政工程有限公司
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