Concrete admixture and pre-mixed and water-permeable concrete using concrete admixture

A permeable concrete and admixture technology, applied in the field of building materials, to delay the cement hydration process, prolong the action time, and inhibit the evaporation of free water

Active Publication Date: 2017-11-10
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the above three conditions are contradictory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A ready-mixed permeable concrete admixture and a preparation method thereof, wherein the ready-mixed permeable concrete admixture is formed by mixing the following components in percentage by weight:

[0045] Water reducing component, ether polycarboxylate superplasticizer, 10%,

[0046] Hydration Regulating Component, Industrial White Sugar, 1.0%,

[0047] Viscosity adjusting component, methyl cellulose ether, 0.1%,

[0048] Moisture evaporation inhibiting component, lauryl alcohol emulsion, 1.0%,

[0049] Thixotropic agent component, polyamide wax, 2%,

[0050] water balance.

[0051] Use the aforementioned concrete admixtures to prepare pervious concrete specimens, and the mix ratio of permeable concrete is shown in the following table:

[0052] Table 1 Mix ratio of permeable concrete

[0053] raw material

P·O4 2.5 cement

5-10mm basalt

water

Admixture

Consumption / kg / m3

350

1500

90

7

[0054] After mixing, the per...

Embodiment 2

[0057] A ready-mixed permeable concrete admixture and a preparation method thereof, wherein the ready-mixed permeable concrete admixture is formed by mixing the following components in percentage by weight:

[0058] Water reducing component, ester polycarboxylate superplasticizer, 15%,

[0059] Hydration Regulating Component, Sodium Tripolyphosphate, 5.0%,

[0060] Viscosity adjusting component, water-soluble starch, 1.0%,

[0061] Moisture evaporation inhibiting component, cetyl alcohol emulsion, 0.5%,

[0062] Thixotropic agent component, fumed silica, 0.5%,

[0063] water balance.

[0064] Use the aforementioned concrete admixtures to prepare pervious concrete specimens, and the mix ratio of permeable concrete is shown in the following table:

[0065] Table 2 Mix ratio of permeable concrete

[0066] raw material

P·O4 2.5 cement

3-5mm basalt

water

Admixture

Consumption / kg / m3

300

1600

80

6

[0067] After mixing, the perme...

Embodiment 3

[0070] A ready-mixed permeable concrete admixture and a preparation method thereof, wherein the ready-mixed permeable concrete admixture is formed by mixing the following components in percentage by weight:

[0071] Water reducing component, ester polycarboxylate superplasticizer, 20%,

[0072] Hydration Regulating Component, Sodium Gluconate, 3.0%,

[0073] Viscosity adjusting component, polyacrylamide, 0.5%,

[0074] Moisture evaporation inhibiting component, pure acrylic emulsion, 5.0%,

[0075] Thixotropic agent component, organic bentonite, 1.0%,

[0076] water balance.

[0077] Use the aforementioned concrete admixtures to prepare pervious concrete specimens, and the mix ratio of permeable concrete is shown in the following table:

[0078] Table 3 Mix ratio of permeable concrete

[0079] raw material

P·O4 2.5 cement

10-16mm limestone

water

Admixture

Consumption / kg / m3

400

1550

100

8

[0080] After mixing, the permeabl...

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PUM

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Abstract

The invention relates to a pre-mixed and water-permeable concrete admixture and water-permeable concrete. The pre-mixed and water-permeable concrete admixture is formed by mixing of the following components in percentage by weight: 10-20% of a water reducing component, 1-5% of a hydration regulating and controlling component, 0.1-1.0% of a viscosity regulating component, 0.5-5% of a water evaporation inhibiting component, 0.5-3% of a thixotropic agent component, and the balance of water. The pre-mixed and water-permeable concrete admixture provided in the invention can effectively improve work conditions of the water-permeable concrete, greatly improve the cohesiveness and the uniformity of slurry wrapping aggregate surfaces, and can effectively prolong the operable time of the water-permeable concrete, meet the requirements of pre-mixing production, long-distance transportation and long-time construction of the water-permeable concrete, and improve the control of production and construction quality of the water-permeable concrete.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a concrete admixture and a ready-mixed permeable concrete using the same. Background technique [0002] As the country and localities are vigorously promoting the construction of "sponge cities" and low-impact development of rainwater systems from top to bottom, more and more cities and regions have joined them. As one of the important components of low-impact development facilities, pervious concrete will be widely used in the construction of urban roads, squares, community roads, and parking lots. The domestic traditional permeable concrete preparation and construction - the mix-in-place mode will neither meet the needs of its large-scale application, nor can it guarantee the quality of engineering construction. Concrete ready-mixing will become the main preparation method of domestic pervious concrete in the future. [0003] Permeable concrete has the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B24/26C04B28/02
CPCC04B28/02C04B40/0039C04B2111/00284C04B2201/50C04B2103/302C04B24/10C04B24/383C04B24/02C04B2103/0085C04B22/002C04B22/16C04B24/38C04B24/2652C04B24/2641C04B14/14C04B14/28
Inventor 刘加平刘建忠姜骞周华新崔巩王方刚谢德擎石亮穆松光鉴淼
Owner JIANGSU SOBUTE NEW MATERIALS
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