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A kind of lightweight concrete and its production process

A technology of lightweight concrete and production process, applied in the field of concrete manufacturing, can solve the problems of low distribution uniformity of lightweight aggregates, and achieve the effects of large binding force, high degree of binding and good uniformity

Active Publication Date: 2022-08-05
河南兴达商砼有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to improve the problem of low distribution uniformity of lightweight aggregate in concrete, the application provides a lightweight concrete and its production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The lightweight concrete of this embodiment is made from the following raw materials by weight: 800 parts of lightweight fine aggregate, 300 parts of lightweight coarse aggregate, 500 parts of cement, 20 parts of water reducing agent, 200 parts of water, and 3 parts of dispersant. 0.5 part of viscose fiber and 0.6 part of polyester fiber; among them, the lightweight fine aggregate is fine aggregate ceramsite with a particle size of 3mm, and the lightweight coarse aggregate is a coarse aggregate ceramic particle with a particle size of 8mm Granules; water reducing agent is polycarboxylate superplasticizer; dispersing agent is hydroxypropyl methyl cellulose; viscose fiber is high wet modulus viscose fiber, denier is 120D, length is 20mm, and dry strength is 4Cn / dtex; the length of the polyester fiber is 25mm, the dry strength is 7Cn / dtex, the polyester fiber is a special-shaped fiber, and the outer circumference of the cross-section of the polyester fiber is zigzag.

[00...

Embodiment 2

[0050] The lightweight concrete of this embodiment is made from the following raw materials by weight: 800 parts of lightweight fine aggregate, 300 parts of lightweight coarse aggregate, 500 parts of cement, 20 parts of water reducing agent, 200 parts of water, and 3 parts of dispersant. 1 part of viscose fiber and 1.5 part of polyester fiber; among them, the lightweight fine aggregate is fine aggregate ceramsite with a particle size of 3mm, and the lightweight coarse aggregate is a coarse aggregate ceramic particle with a particle size of 8mm Granules; water reducing agent is polycarboxylate superplasticizer; dispersing agent is hydroxypropyl methyl cellulose; viscose fiber is high wet modulus viscose fiber, denier is 200D, length is 20mm, and dry strength is 4Cn / dtex; the length of the polyester fiber is 50mm, the dry strength is 7Cn / dtex, the polyester fiber is a special-shaped fiber, and the outer circumference of the cross-section of the polyester fiber is zigzag.

[0051...

Embodiment 3

[0058] The lightweight concrete of this embodiment is made from the following raw materials by weight: 600 parts of lightweight fine aggregate, 500 parts of lightweight coarse aggregate, 350 parts of cement, 10 parts of water reducing agent, 120 parts of water, and 3 parts of dispersant. 1 part of viscose fiber and 1.5 part of polyester fiber; among them, the lightweight fine aggregate is fine aggregate ceramsite with a particle size of 3mm, and the lightweight coarse aggregate is a coarse aggregate ceramic particle with a particle size of 8mm Granules; water reducing agent is polycarboxylate superplasticizer; dispersing agent is hydroxypropyl methyl cellulose; viscose fiber is high wet modulus viscose fiber, denier is 180D, length is 20mm, and dry strength is 4Cn / dtex; the length of the polyester fiber is 35mm, the dry strength is 7Cn / dtex, the polyester fiber is a special-shaped fiber, and the outer circumference of the cross-section of the polyester fiber is zigzag.

[0059...

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Abstract

The present application relates to the technical field of concrete manufacturing, and specifically discloses a lightweight concrete and a production process thereof. Lightweight concrete is mainly made of the following raw materials by weight: 600-800 parts of lightweight fine aggregate, 300-500 parts of lightweight coarse aggregate, 350-500 parts of cement, 10-20 parts of water reducing agent, and 100- parts of water 200 parts, 1-3 parts of dispersant, 0.5-1 part of viscose fiber, and 0.6-1.5 part of polyester fiber; the production process of the lightweight concrete of the present application includes: step 1, mixing cement, viscose fiber, polyester fiber , dispersant, and water are mixed uniformly to obtain gel material; step 2, light fine aggregate and light weight coarse aggregate are mixed uniformly to obtain aggregate material; step 3, gel material and aggregate material are uniformly mixed. The lightweight concrete has the advantage of good uniformity.

Description

technical field [0001] The present application relates to the technical field of concrete manufacturing, and more particularly, to a lightweight concrete and a production process thereof. Background technique [0002] Cement has become the most widely used material in the construction industry. Traditional concrete generally uses sand and crushed stone as aggregates, and the apparent density is generally large, reaching 2000kg / m2. 3 The above, and lightweight concrete refers to the use of lightweight aggregates, water, cement and admixtures mixed with an apparent density of less than 2000kg / m 3 . Compared with traditional concrete, it has the characteristics of low density, good thermal insulation performance and good earthquake resistance, and has been widely used in the construction industry. [0003] Due to the addition of lightweight aggregates in lightweight concrete, lightweight aggregates are generally hollow structures with low strength. When the concrete is subjec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02C04B111/40
CPCC04B28/02C04B2111/40C04B2201/50C04B2201/20C04B18/027C04B24/383C04B16/0683C04B16/06C04B2103/302
Inventor 吴广胜王俊峰鲁海龙
Owner 河南兴达商砼有限公司
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