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Erosion-resistant water-permeable concrete cementing material

A permeable concrete and binder technology, applied in the field of urban pavement structure, can solve problems such as unseen components and concept innovation, and achieve the effects of improving water permeability, reducing sensitivity, and reducing dosage

Active Publication Date: 2018-04-13
武汉市恒星防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Most of the above-mentioned patents are about the preparation method of pervious concrete or the specific admixtures or small materials used. In terms of components, traditional emulsion thickening components or hydrophobic aggregates are used to enhance the water permeability of pervious concrete. No innovations in components and concepts have been seen.

Method used

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  • Erosion-resistant water-permeable concrete cementing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0050] An erosion-resistant permeable concrete binder, its raw material formula includes the following components by weight percentage:

[0051] P.O52.5: 34%;

[0052] The composition is CaO: 60wt%, Al 2 o 3 : 25wt%, Fe 2 o 3 : 15wt% high-iron calcium aluminate cement: 18%;

[0053] Ultrafine mineral powder with a specific surface area of ​​852: 20%;

[0054] Ferrous sulfate: 17%;

[0055] Wenlun glue: 0.6%;

[0056] 2D Aperture Zeolite powder: 1.3%;

[0057] Polycarboxylate superplasticizer powder: 0.7%;

[0058] Sulfamate superplasticizer powder: 0.5%;

[0059] Nonylphenol polyoxyethylene ether phosphate monoester: 0.2%;

[0060] Propylene glycol polyoxypropylene polyoxyethylene block polyether: 0.2%;

[0061] Magnesium stearate: 2.0%;

[0062] Zinc stearate: 5.0%;

[0063] Butter-wrapped silane-based hydrophobic powder SHP 50 (the mass ratio of tallow to silane-based hydrophobic powder SHP 50 is 1.2:1, and the mixed powder formed by the two is sieved with a f...

Embodiment 3

[0065] An erosion-resistant permeable concrete binder, its raw material formula includes the following components by weight percentage:

[0066] P.O42.5: 39%;

[0067] The composition is CaO: 62wt%, Al 2 o 3 : 23wt%, Fe 2 o 3 : 15wt% high-iron calcium aluminate cement: 11%;

[0068] Specific surface area 871m 2 / kg ultrafine mineral powder: 24%;

[0069] Zinc sulfate: 15%;

[0070] Natural gum: 1.7%;

[0071] 2D Aperture Zeolite powder: 2.3%;

[0072] Polycarboxylate superplasticizer powder: 1.0%;

[0073] Sulfamate superplasticizer powder: 0.3%;

[0074] Nonylphenol polyoxyethylene ether phosphate monoester: 0.1%;

[0075] Cadmium stearate: 5.0%;

[0076] Silane-based hydrophobic powder SHP 50 wrapped in sheep oil (the mass ratio of sheep oil and silicon-based hydrophobic powder SHP 50 is 2:1, and the mixed powder formed by the two is sieved with a fineness of 200 mesh and 95%): 0.5%.

Embodiment 4

[0078] An erosion-resistant permeable concrete binder, its raw material formula includes the following components by weight percentage:

[0079] P.O52.5R: 40%;

[0080] The composition is CaO: 64wt%, Al 2 o 3 : 23wt%, Fe 2 o 3 : 13wt% high-iron calcium aluminate cement: 19%;

[0081] Specific surface area 817m 2 / kg ultrafine mineral powder: 19%;

[0082] Magnesium sulfate: 12%;

[0083] Wenlun rubber: 1.9%;

[0084] 2D Aperture Zeolite powder: 3.1%;

[0085] Polycarboxylate superplasticizer powder: 1.0%;

[0086] Sulfamate superplasticizer powder: 0.5%

[0087] Sodium tetradecyl polyoxyethylene ether succinate monoester sulfonate: 0.3%;

[0088] Aluminum stearate: 2.5%;

[0089] Silane-based hydrophobic powder SHP 50 wrapped in sheep oil (the mass ratio of sheep oil and silane-based hydrophobic powder SHP 50 is 1.5:1, and the mixed powder formed by the two is sieved with a fineness of 200 mesh and 95%): 0.7%.

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Abstract

The invention provides an erosion-resistant water-permeable concrete cementing material, made with, by weight, 30-50% of ordinary Portland cement, 10-20% of high-iron calcium aluminate cement, 10-25%of superfine mineral powder, 10-20% of metallic sulfates, 0.5-2.5% of a water-soluble flocculant, 1-5% of a water-absorbing expandable inorganic material, 0.5-2.0% of polycarboxylate superplasticizerpowder, 0.2-0.5% of amino-sulfonate superplasticizer powder, 0.1-0.5% of a wetting agent, 2-7% of a metallic soap waterproof agent and 0.2-0.8% of oil-modifying hydrophobing agent, wherein the high-iron calcium aluminate cement coordinates with the metallic sulfates, the superfine mineral powder and ordinary Portland cement to improve strength of concrete; the water-absorbing expandable inorganicmaterial, the water-soluble flocculant and the wetting agent improve wrapping property and water-holding property of concrete; the polycarboxylate superplasticizer powder, the amino-sulfonate superplasticizer powder and the metallic soap waterproof agent ensure low slump and mobility of the concrete; the metallic soap waterproof agent and the oil-modifying hydrophobing agent can improve lubricating degree of inner and outer surface structures of a cement binding material.

Description

technical field [0001] The invention belongs to the technical field of urban pavement structures, and relates to an erosion-resistant permeable concrete cementitious material, which is used in lightweight road projects such as sidewalks, light carriageways, ground decoration, landscape roads, city squares, stadiums, fire exits, and parking lots. Background technique [0002] With the continuous development of urban modernization, the urban heat island effect is significant. High temperature accelerates photochemical reactions, aggravates air pollution, and damages human health. The city is covered by reinforced concrete, which has poor water and air permeability, resulting in poor breathability of the road surface and poor penetration of rainwater. Permeable concrete has a porous structure, which can improve the situation of low groundwater level, increase urban groundwater resources, improve the city's climate, and improve the environment. At present, pervious concrete has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42
CPCC04B40/0042C04B7/02C04B7/32C04B18/141C04B14/047C04B24/32C04B24/085C04B24/42C04B18/248C04B2103/302C04B22/148C04B24/38C04B22/149C04B18/18C04B22/142
Inventor 柯凯文帅涛王迎斌谌援
Owner 武汉市恒星防水材料有限公司
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