Curing agent, preparation method and application thereof, weathered argillaceous siltstone improved material and application thereof

A curing agent and siltstone technology, which is applied in the field of building materials, can solve the problems of weathered argillaceous siltstone being easy to disintegrate and soften, increasing the difficulty of environmental protection, and large construction costs, so as to reduce the cost of earthwork outsourcing and disposal , Improve water stability and improve engineering properties

Pending Publication Date: 2021-12-21
SICHUAN INSITITUTE OF BUILDING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The research found that the weathered argillaceous siltstone has a low California bearing ratio (CBR) and poor water stability, which makes the weathered argillaceous siltstone easy to disintegrate and soften when exposed to water, and its strength drops rapidly, so it is not suitable for Directly used as road filler or roadbed filler
At present, when the proposed construction line passes through the weathered argillaceous siltstone, the traditional road construction method is to transport a large amount of gravel or stone to replace it, which not only brings huge construction costs, but also produces a large amount of waste siltstone. It has also caused many adverse effects on the local environment, thus increasing the difficulty of environmental protection.

Method used

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  • Curing agent, preparation method and application thereof, weathered argillaceous siltstone improved material and application thereof
  • Curing agent, preparation method and application thereof, weathered argillaceous siltstone improved material and application thereof
  • Curing agent, preparation method and application thereof, weathered argillaceous siltstone improved material and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] 1, one curing agent, in parts by weight, comprising: 20 parts of cement, 15 parts of fly ash, slag, 25 parts, 20 parts of lime, 19 parts of bentonite, and 1 part of cellulose ether.

[0048] Wherein, a commercially available cement Portland cement; lime are commercially available quicklime; commercially available calcium bentonite bentonite; cellulose ether is methyl cellulose.

[0049] 2, a method of preparing the curing agent, comprising: according to the ratio of cement, fly ash, slag, lime, bentonite and cellulose mixed ethers, i.e., too.

[0050] 3. A weathered muddy siltstone improved material feedstock comprising: the curing agent, weathering and argillaceous water.

[0051] Wherein the weight of the curing agent of 5% by weight of argillaceous weathering; by weight of water and the curing agent ratio of 1.9: 1; weathering argillaceous argillaceous is weathered.

[0052] 4, one of the above improved weathering argillaceous material preparation method, comprising:

[...

Embodiment 2

[0056] 1, one curing agent, in parts by weight, comprising: 34.5 parts of cement, 15 parts of fly ash, slag, 30 parts, 15 parts of lime, 5 parts of bentonite and 0.5 parts of the cellulose ether.

[0057] Wherein, a commercially available cement Portland cement; lime are commercially available quicklime; commercially available calcium bentonite bentonite; cellulose ether is sodium carboxymethylcellulose.

[0058] 2, a method of preparing the curing agent, comprising: according to the ratio of cement, fly ash, slag, lime, bentonite and cellulose mixed ethers, i.e., too.

[0059] 3. A weathered muddy siltstone improved material feedstock comprising: the curing agent, weathering and argillaceous water.

[0060] Wherein the weight of the curing agent of 5% by weight of argillaceous weathering; by weight of water and the curing agent ratio of 1.9: 1; weathering argillaceous argillaceous is weathered.

[0061] 4, one of the above improved weathering argillaceous material preparation met...

Embodiment 3

[0065] 1, one curing agent, in parts by weight, comprising: 40 parts of cement, 15 parts of fly ash, slag, 25 parts, 10 parts of lime, 5 parts of bentonite and 5 parts of cellulose ether.

[0066] Wherein the cement is Portland cement; lime are commercially available quicklime; commercially available calcium bentonite bentonite; cellulose ether is hydroxyethyl cellulose.

[0067] 2, a method of preparing the curing agent, comprising: according to the ratio of cement, fly ash, slag, lime, bentonite and cellulose mixed ethers, i.e., too.

[0068] 3. A weathered muddy siltstone improved material feedstock comprising: the curing agent, weathering and argillaceous water.

[0069] Wherein the weight of the curing agent of 5% by weight of argillaceous weathering; by weight of water and the curing agent ratio of 1.9: 1; weathering argillaceous argillaceous is weathered.

[0070] 4, one of the above improved weathering argillaceous material preparation method, comprising:

[0071] Sl, weat...

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Abstract

The invention relates to the technical field of building materials, and discloses a curing agent, a preparation method thereof and application thereof. The curing agent comprises the following components in parts by weight: 20-60 parts of cement, 5-25 parts of fly ash, 5-35 parts of slag, 5-25 parts of lime, 5-25 parts of bentonite and 0.1-5 parts of cellulose ether. In addition, the invention also discloses a weathered argillaceous siltstone improved material and an application of the weathered argillaceous siltstone improved material in a base material of a road and / or a surface material of the road. The weathered argillaceous siltstone improved material comprises the following raw materials: weathered argillaceous siltstone and the curing agent. The curing agent disclosed by the invention can perform in-situ curing on the weathered argillaceous siltstone through physical and chemical reactions, and the water stability, strength and integrity of the weathered argillaceous siltstone are remarkably improved, so that the engineering properties of the weathered argillaceous siltstone are improved, and at least the effects of greatly reducing the road building cost and being beneficial to environmental protection are achieved.

Description

Technical field [0001] The present invention relates to the technical field of building materials, in particular a curing agent and its preparation method and application, and an improved weathering argillaceous materials and their applications. Background technique [0002] Argillaceous siltstone sand is transported first through the water deposited on the river bed, through the accumulation of solid geological and physical effects of thousands of years of rock cemented together. Surface or close to the surface of argillaceous weathering occurs during contact with the atmosphere, and water organisms, such structural damage occurs, fissures, mineral composition change and strength is significantly lowered and so on. Classified according to the degree of weathering, can be divided into weathered weathering, weathering, strong weathering, full weathering and residual soil. [0003] The study found that the weathering argillaceous California Bearing lower than (Californiabearing rat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B18/08C04B18/14E01C3/04E01C7/14
CPCC04B28/12C04B18/08C04B18/141E01C3/04E01C7/142C04B2111/0075C04B2111/00017C04B7/02C04B14/104C04B24/383C04B14/06Y02W30/91
Inventor 于冬雪黎红兵刘知习刘珉巍张明明
Owner SICHUAN INSITITUTE OF BUILDING RES
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