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High-durability silicate concrete for dam

A Portland concrete, durable technology, applied in the field of concrete, can solve problems such as concrete damage, dam corrosion, freeze-thaw damage, etc.

Inactive Publication Date: 2016-09-21
NANTONG KEDA BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Freeze-thaw damage: Concrete will be damaged by freeze-thaw effects (dry and wet changes, temperature changes, etc.);
[0009] The composition of seawater is complex, and chloride ions and sulfate ions are easy to corrode the dam and cause damage to the dam

Method used

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  • High-durability silicate concrete for dam

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Effect test

Embodiment 1

[0016] The invention provides a high-durability silicate concrete for dams, which comprises the following components in parts by mass: 218.5 parts by weight of glue, 507 parts of sand, 1703 parts of stone, and 100 parts by weight of water; wherein, the part by weight of glue includes the following parts by parts by weight: cement 165, fly ash 21, admixture 21.5.

[0017] Further, the cement is sulfate-resistant cement.

[0018] Further, the C3A content of the sulfate-resistant cement is less than or equal to 5%. The concrete provided in this embodiment adopts sulfate-resistant cement with low C3A, and appropriate amount of fly ash and slag are added to it to improve the corrosion effect on sulfate.

[0019] Further, the admixture includes the following components in parts by mass: anti-cracking and waterproofing agent 17.3, air-entraining agent 2.1, and water reducing agent 2.1.

[0020] Further, the anti-crack waterproofing agent is an anti-corrosion anti-cracking waterproo...

Embodiment 2

[0024] The present invention provides a high-durability silicate concrete for dams, which includes the following components in parts by mass: adhesive material: 225, water 105, sand 510, and stones 1710; wherein, the adhesive material includes the following components in parts by mass: Cement 170, fly ash 33, admixture 22.

[0025] Further, the cement is sulfate-resistant cement.

[0026] Further, the C3A content of the sulfate-resistant cement is less than or equal to 5%. The concrete provided in this embodiment adopts sulfate-resistant cement with low C3A, and appropriate amount of fly ash and slag are added to it to improve the corrosion effect on sulfate.

[0027] Further, the admixture includes the following components in parts by mass: 17.5 parts by mass of the anti-crack and waterproof agent, 2.2 air-entraining agent, and 2.3 water-reducing agent.

[0028] Further, the anti-crack waterproofing agent is an anti-corrosion anti-cracking waterproof agent.

[0029] Furthe...

Embodiment 3

[0032] The invention provides a high-durability silicate concrete for dams, which includes the following components in parts by mass: 227.5 parts by weight of glue, 519 parts of sand, 1725 parts of stone, and 110 parts by weight of water; wherein, the part by weight of glue includes the following parts by parts by weight: cement 171, fly ash 34, admixture 22.5.

[0033] Further, the cement is sulfate-resistant cement.

[0034] Further, the C3A content of the sulfate-resistant cement is less than or equal to 5%. The concrete provided in this embodiment adopts sulfate-resistant cement with low C3A, and appropriate amount of fly ash and slag are added to it to improve the corrosion effect on sulfate.

[0035] Further, the admixture includes the following components in parts by mass: 17.5 parts by mass of the anti-crack and waterproof agent, 2.5 parts of the air-entraining agent, and 2.5 parts of the water-reducing agent.

[0036] Further, the anti-crack waterproofing agent is a...

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Abstract

The invention discloses high-durability silicate concrete for a dam. The high-durability silicate concrete comprises components in parts by mass as follows: 218.5-227.5 parts of a glue material, 507-519 parts of sand, 1,703-1,725 parts of stones and 100-110 parts of water, wherein the glue material comprises components in parts by mass as follows: 165-171 parts of cement, 32-34 parts of fly ash and 21.5-22.5 parts of an admixture. According to the embodiment, the high-durability silicate concrete for the dam has high strength, higher collapse resistance and compressive strength, good durability and good anti-freezing and anti-penetrability performance, and besides, the concrete has higher carbonization resistance, chloride ion resistance and sulfate attack resistance and is suitable for being applied to a complicated seawater environment.

Description

technical field [0001] The present disclosure generally relates to the field of concrete, and in particular relates to a high-durability silicate concrete for embankments. Background technique [0002] The northern coastal areas of my country are relatively less affected by typhoons, and the bedrock and gravel coasts are widely distributed. Even in some muddy coastal areas, such as the Bohai Bay in Hebei and Tianjin, due to the saline-alkali land near the coast, the impact on the seawall Therefore, there were few seawalls in the northern coastal areas in the past, and their construction quality was relatively poor. In recent years, with the rapid development of the national economy, especially the construction of coastal economic and technological development zones, new requirements have been put forward for the construction of coastal protection buildings. [0003] Due to the complex environment of the embankment and the influence of various conditions, the influence of the...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/08C04B14/06C04B14/02C04B22/002C04B18/141C04B2103/304C04B2103/302C04B22/064
Inventor 薛竣庞正扬
Owner NANTONG KEDA BUILDING MATERIALS