High-performance vegetation pervious concrete

A permeable concrete, high-performance technology, used in applications, home appliances, ceramic products, etc., can solve problems such as hindering the popularization and application of plant permeable concrete, poor plant adaptation, and poor durability, and achieve high connected porosity and water permeability. Pore ​​alkalinity, the effect of ensuring strength

Inactive Publication Date: 2018-09-21
GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Vegetation permeable concrete in the prior art has problems such as low strength, poor durability, and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] The high-performance plant-grown permeable concrete provided in this embodiment includes the following components in parts by mass: ordinary Portland cement 5, low-alkalinity sulphur-aluminum Portland cement 5, gypsum 5, slag 3, fly ash 3. Silica fume 3, aggregate 80, water reducing agent 0.3, early strength agent 0.1, redispersible latex powder 0.1, thickener 0.01, fiber 0.1, water 4.

[0029] The preparation method of the high-performance vegetation permeable concrete is as follows:

[0030] (1) First, add all the aggregates and water that accounts for 30-40% of the total water mass to the mixer, and mix for 30-60s to pre-wet the aggregates and reach the saturated surface dry state;

[0031] (2) Then add the cement which accounts for 40-60% of the total mass of the cement (the cement refers to the other raw materials except for the aggregate, water reducing agent and water), stir for 30-60s, so that the surface of the aggregate is evenly covered with a slur...

Example Embodiment

[0037] Example 2

[0038] The high-performance plant-grown water-permeable concrete provided in this embodiment includes the following components in parts by mass: ordinary Portland cement 10, low-alkalinity sulphoaluminum Portland cement 10, gypsum 10, slag 5, fly ash 5, Silica fume 5, aggregate 60, water reducing agent 0.7, early strength agent 0.5, redispersible latex powder 1.0, thickener 0.1, fiber 1.0, water 10.

[0039] The preparation method of the high-performance plant-growing permeable concrete is the same as in Example 1.

[0040] The performance indexes of the high-performance plant-grown permeable concrete made are shown in Table 2 below.

[0041] Table 2 The performance index of the high-performance planting permeable concrete in this example

[0042]

Example Embodiment

[0043] Example 3

[0044] The high-performance plant-grown permeable concrete provided in this embodiment includes the following components in parts by mass: ordinary Portland cement 8, low-alkalinity sulphur-aluminum Portland cement 7, gypsum 7, slag 4, fly ash 4. Silica fume 4, aggregate 70, water reducing agent 0.3, early strength agent 0.2, redispersible latex powder 0.5, thickener 0.05, fiber 0.15, water 7.

[0045] The preparation method of the high-performance plant-growing permeable concrete is the same as in Example 1.

[0046] The performance indexes of the high-performance plant-grown permeable concrete made are shown in Table 3 below.

[0047] Table 3 The performance index of the high-performance planting permeable concrete in this example

[0048]

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Abstract

The invention discloses high-performance vegetation pervious concrete which is prepared from cement, gypsum, auxiliary binding materials, aggregates, additives, fiber and water. The cement is a mixture of ordinary Portland cement and low-alkalinity sulphoaluminosilicate cement; the auxiliary binding material is a mixture of coal ash, slag and silica fume, and the additives include a mixture of a water reducer, an early strength agent, a redispersible powder and a thickening agent. The high-performance vegetation pervious concrete has the advantages of being high in connection porosity and permeation coefficient, low in pH value, good in mechanical property and durability and the like.

Description

technical field [0001] The invention belongs to the technical field of cement-based building materials, and in particular relates to a high-performance plant-grown permeable concrete. Background technique [0002] With the rapid development of my country's economy and the acceleration of urban construction, the ground is covered by a large number of buildings and concrete roads, impervious areas increase, urban waterlogging is serious, and the groundwater level drops sharply; the area of ​​urban green vegetation is significantly reduced, resulting in wanton dust. Flying, PM2.5 is helped to soar, and the air quality continues to deteriorate; rivers, dams, roads, slope protection, etc. are mainly protected by concrete slabs, which destroy the vegetation on the surface, cut off the biological chain system, and reduce the water purification ability of the surface. [0003] Vegetative permeable concrete is a kind of aggregate and cement as the main raw materials. It has a continuo...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B38/00C04B111/40
CPCC04B28/14C04B38/00C04B2111/00284C04B2201/50C04B2111/40C04B7/02C04B7/32C04B18/141C04B18/08C04B18/146C04B14/02C04B2103/302C04B2103/12C04B2103/0057C04B2103/44C04B16/0633C04B18/26
Inventor 陈培鑫李建新费飞龙陈耿林春李晓琛
Owner GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD
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