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Water-permeable bonding screeding mortar for water-permeable brick pavement

A technology for leveling mortar and permeable bricks, applied in the field of building materials, can solve the problems of low ground bearing capacity, low water permeability, and small water storage capacity of permeable bricks, so as to achieve high overall bearing capacity, easy control of mortar dosage, and water storage. Ability-enhancing effect

Inactive Publication Date: 2017-06-13
郑州春晟装饰新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a permeable bonding leveling mortar for paving permeable bricks, which solves the problems of low ground bearing capacity, low water permeability, small water storage capacity and poor durability of permeable bricks caused by the existing mortar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A permeable bonding leveling mortar for permeable brick paving, which is composed of the following components, the mass percentage of each component is: P.O42.5 ordinary portland cement 16%, machine-made sand 82%, high activity Mineral admixture 1.5%, polycarboxylate superplasticizer 0.1%, cellulose ether 0.1%, redispersible latex powder 0.3%.

[0024] The performance index of the permeable bonding leveling mortar used for paving permeable bricks obtained in the present embodiment is as follows:

[0025] (1) Water permeability coefficient: 2.0×10-2cm / s;

[0026] (2) Freeze-thaw resistance: after 25 freeze-thaw cycles, the strength loss rate is 17%, and the mass loss rate is 5%;

[0027] (3) 28d compressive strength: 2.8MPa;

[0028] (4) Tensile bond strength: 0.6MPa.

Embodiment 2

[0030] A permeable bonding leveling mortar for permeable brick paving, which is composed of the following components, the mass percentage of each component is: P.O42.5 ordinary portland cement 10%, machine-made sand 88.4%, high activity Mineral admixture 1%, polycarboxylate superplasticizer 0.15%, cellulose ether 0.05%, redispersible latex powder 0.4%.

[0031] The performance index of the permeable bonding leveling mortar used for paving permeable bricks obtained in the present embodiment is as follows:

[0032] (1) Water permeability coefficient: 2.2×10 -2 cm / s;

[0033] (2) Freeze-thaw resistance: after 25 freeze-thaw cycles, the strength loss rate is 18%, and the mass loss rate is 4%;

[0034] (3) 28d compressive strength: 2.9MPa;

[0035] (4) Tensile bond strength: 0.7MPa.

Embodiment 3

[0037] A permeable bonding leveling mortar for permeable brick paving, which is composed of the following components, the mass percentage of each component is: P.O42.5 ordinary portland cement 20%, machine-made sand 78.6%, high activity Mineral admixture 2%, polycarboxylate superplasticizer 0.05%, cellulose ether 0.15%, redispersible latex powder 0.2%.

[0038] The performance index of the permeable bonding leveling mortar used for paving permeable bricks obtained in the present embodiment is as follows:

[0039] (1) Water permeability coefficient: 2.1×10 -2 cm / s;

[0040] (2) Freeze-thaw resistance: after 25 freeze-thaw cycles, the strength loss rate is 17%, and the mass loss rate is 3%;

[0041] (3) 28d compressive strength: 2.5MPa;

[0042] (4) Tensile bond strength: 0.7MPa.

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Abstract

The invention discloses water-permeable bonding screeding mortar for water-permeable brick pavement, and belongs to the technical field of construction materials. The water-permeable bonding screeding mortar is prepared from the following components in percentage by mass: 10-20 percent of P.O42.5 ordinary Portland cement, 75-88.7 percent of machine-made sand, 1-2 percent of highly active mineral admixture, 0.05-0.15 percent of polycarboxylate superplasticizer, 0.05-0.15 percent of cellulose ether and 0.2-0.4 percent of redispersible latex powder. By using the water-permeable bonding screeding mortar for water-permeable brick pavement, the water-permeating and water storing capability of the water-permeable bricks can be remarkably improved. The water-permeable bonding screeding mortar has the advantages of high bearing capacity, strong bonding force, convenience in construction, reasonable cost and the like, and has the effects of reducing labor intensity, improving operation environment, remarkably reducing waste and facilitating energy conservation and emission reduction.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a permeable bonding leveling mortar for paving permeable bricks. Background technique [0002] In my country, the hardened ground of urban infrastructure such as roadways, sidewalks, squares, parking lots, and gardens, and the hardened ground (roof) of residential quarters, courtyards, and buildings have always been emphasized in terms of design, construction, and use. The importance of water permeability is regarded as a constant criterion. With the development of my country's economy and society and the continuous expansion of urban construction scale, the negative impact of impermeable ground on urban ecology and human settlements is increasing, such as urban waterlogging becoming more serious, water consumption exceeding the environmental carrying capacity, and heat island effect Cause extreme weather etc. [0003] The construction of sponge city is an important st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20C04B111/60
CPCC04B28/04C04B2111/00284C04B2111/00637C04B2111/29C04B2111/60C04B2201/50C04B14/06C04B18/146C04B24/383C04B2103/302C04B2103/0057
Inventor 王俊杰
Owner 郑州春晟装饰新材料科技股份有限公司
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