CN101323517A

CN101323517A - Environment-protective type plant cover concrete

Info

Publication number: CN101323517A
Application number: CNA2008101201286A
Authority: CN
Inventors: 孙家瑛; 李立新; 孙倩; 徐亦东; 黄大文
Original assignee: Ningbo Institute of Technology of ZJU
Current assignee: Ningbo Institute of Technology of ZJU
Priority date: 2008-07-22
Filing date: 2008-07-22
Publication date: 2008-12-17
Anticipated expiration: 2028-07-22
Also published as: CN101323517B

Abstract

The invention discloses an environment-friendly plant concrete, consisting of water, cement, waste concrete aggregate, concrete antalkali and poly carboxylic acid water reducing agent. The detailed matching proportion is as follows: the ratio of water/cement/ waste concrete aggregate is 0.28 to 0.32:1:5; the quantity of adopted concrete antalkali is 10 to 20 percent of the cement quantity; the quantity of the poly carboxylic acid water reducing agent is 1 to 2 percent of the cement quantity. Compared with the existing similar product of the prior technology, the invention not only can solve the contamination to ecological environment by stacked waste concrete but also can avoid the damage to ecological environment by extreme exploitation to aggregate and realize the purpose of planting plants on concrete, thus achieving the effects of recycling sources, regulating ecological balance and beautifying environment; the intensity of the concrete is high, the concrete can be pre-cast into various shapes as requirements, and the construction is convenient.

Description

Environment-protective type plant cover concrete

Technical field:

The present invention relates to a kind of environment-protective type plant cover concrete.

Background technology:

At present along with Urban House renewal and municipal moving scale continue to increase, many concrete structures and structures need be removed, build with redesign, and these are removed the discarded concrete that gets off and often rationally utilize in addition and just directly stack in the open air, influence ecological environment is unfavorable for the eubiosis.Because flowers and plants and concrete characteristic separately, flowers and plants can not grow on concrete in addition, make that concrete loses every tree and every blade of grass on garden and the bank protection concrete, and this not only hinders view, but also is unfavorable for the local eubiosis.And plant cover concrete is a kind of plant-growth that can adapt to, to regulating the eubiosis, beautifying the environment, realize that human coordination with nature has active effect, but the plant cover concrete of prior art all adopts rubble or sandstone as gathering materials, therefore on the one hand when improving the ecological environment, quarrying on the other hand and adopt sand and but destroyed ecotope.But up to the present, because the discarded concrete aggregate water absorption is big, the plant cover concrete intensity low (generally below 5Mpa) of preparation, the basicity height, so prefabricated plant cover concrete difficulty is bigger, vegetation can't grow, and can't carry out engineering and use.

Summary of the invention:

The purpose of this invention is to provide a kind of with discarded concrete for gathering materials, both can solve discarded concrete and stack the problem of influence ecological environment, can solve the exploitation of gathering materials again and destroying the problem of ecotope, and play resource regeneration, regulate the eubiosis and the environment-protective type plant cover concrete of the effect of beautifying the environment.

Be to realize the object of the invention, used technical scheme is: a kind of environment-protective type plant cover concrete, it by water, cement, gather materials, concrete alkalescence neutralizing agent and polycarboxylate water-reducer form, concrete proportioning is:

Water: cement: it is 0.28～0.32 that discarded concrete gathers materials: 1: 5

Concrete alkalescence neutralizing agent is 10%～20% of a cement consumption

Polycarboxylate water-reducer is 1%～2% of a cement consumption

Described cement is ordinary Portland cement, and label is not less than 52.5.

Described discarded concrete gathers materials for the discarded concrete fragmentation makes, and requires crush values less than 30%, and silt content is less than 2%, and grain diameter is the single grating of 5mm～38mm.

Described concrete alkalescence neutralizing agent is made up of soft silica, zeolite and acid soil plant extract, and the ratio of each component is 67～71 parts of soft silicas, 28～30 parts in zeolite, 1～3 part of acid soil plant extract.

The present invention compared with prior art, owing to adopted discarded concrete for gathering materials, and concrete alkalescence neutralizing agent and polycarboxylate water-reducer have been added, make the discarded concrete aggregate water absorption reduce, prepared plant cover concrete intensity increases, basicity reduces, therefore the present invention has the problem that can solve discarded concrete stacking influence ecological environment, can solve the overexploitation that gathers materials again destroys the problem of ecotope and plant the plant technology problem on concrete, thereby play the regeneration of resource, the effect of regulating the eubiosis and beautifying the environment, and intensity height, can be prefabricated into arbitrary shape, easy construction as required.

Concrete embodiment:

Below in conjunction with concrete embodiment explanation, but the invention is not restricted to following concrete embodiment:

Embodiment one:

(1) the discarded concrete fragmentation is gathered materials as discarded concrete, require crush values less than 30%, silt content is less than 2%, and grain diameter is the single grating of 5mm;

(2) with soft silica (SiO ₂) 67 parts, 30 parts in zeolite, acid soil plant extract (being the commercially available prod, the Fructus Crataegi extract of producing as Shaanxi Sen Fu Bioisystech Co., Ltd) is mixed and made into concrete alkalescence neutralizing agent for 3 parts

(3) the gather materials concrete alkalescence neutralizing agent 30kg and the polycarboxylate water-reducer 3kg of 1500kg, step (2) of the discarded concrete that water 84kg, label is not less than 52.5 ordinary Portland cement 300kg, step (1) mixes, and stirs with stirrer;

(4) material that stirs is watered prefabricated mould smash;

(5) carry out maintenance, curing condition: temperature is 20 ℃, and humidity is 50%;

(6) with after the mould dismounting, be finished product.

Embodiment two:

(1) the discarded concrete fragmentation is gathered materials as discarded concrete, require crush values less than 30%, silt content is less than 2%, and grain diameter is the single grating of 38mm;

(2) with 71 parts of soft silicas, 28 parts in zeolite, the acid soil plant extract is mixed and made into concrete alkalescence neutralizing agent for 1 part

(3) the gather materials concrete alkalescence neutralizing agent 100kg and the polycarboxylate water-reducer 10kg of 2500kg, step (2) of the discarded concrete that water 160kg, label is not less than 52.5 ordinary Portland cement 500kg, step (1) mixes, and stirs with stirrer;

(4) material that stirs is watered prefabricated mould smash;

(6) with after the mould dismounting, be finished product.

Embodiment three:

(1) the discarded concrete fragmentation is gathered materials as discarded concrete, require crush values less than 30%, silt content is less than 2%, and grain diameter is the single grating of 22mm;

(2) with 69 parts of soft silicas, 29 parts in zeolite, the acid soil plant extract is mixed and made into concrete alkalescence neutralizing agent for 2 parts

(3) the gather materials concrete alkalescence neutralizing agent 51kg and the polycarboxylate water-reducer 5.1kg of 1700kg, step (2) of the discarded concrete that water 102kg, label is not less than 52.5 ordinary Portland cement 340kg, step (1) mixes, and stirs with stirrer;

(4) material that stirs is watered prefabricated mould smash;

(6) with after the mould dismounting, be finished product.

Claims

1, a kind of environment-protective type plant cover concrete is characterized in that: it by water, cement, discarded concrete gather materials, concrete alkalescence neutralizing agent and polycarboxylate water-reducer form, concrete proportioning is:

Concrete alkalescence neutralizing agent is 10%～20% of a cement consumption

Polycarboxylate water-reducer is 1%～2% of a cement consumption.

2, environment-protective type plant cover concrete according to claim 1 is characterized in that: described cement is ordinary Portland cement, and label is not less than 52.5.

3, environment-protective type plant cover concrete according to claim 1 is characterized in that: described discarded concrete gathers materials for the discarded concrete fragmentation makes, and requires crush values less than 30%, and silt content is less than 2%, and grain diameter is the single grating of 5mm～38mm.

4, environment-protective type plant cover concrete according to claim 1, it is characterized in that: described concrete alkalescence neutralizing agent is made up of soft silica, zeolite and acid soil plant extract, the ratio of each component is 67～71 parts of soft silicas, 28～30 parts in zeolite, 1～3 part of acid soil plant extract.