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a high-strength concrete

A concrete and high-strength technology, applied in the field of concrete, can solve the problems of water loss, shrinkage, cracks, and temperature rise of high-strength concrete.

Active Publication Date: 2020-10-20
浙江晟周集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the existing technology is that high-strength cement is used in high-strength concrete, and high-strength cement will generate a lot of heat during the hydration process, causing the temperature inside high-strength concrete to rise, resulting in water loss and shrinkage inside high-strength concrete , resulting in cracks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: A high-strength concrete, including the components shown in Table 1 in parts by weight.

[0046] Among them, the cement is P.O52.5 cement; the fine aggregate is medium sand in Zone II; the coarse aggregate is continuously graded gravel with a minimum particle size of 5mm and a maximum particle size of 25mm; the water reducer is FDN high-efficiency Retarding superplasticizer; the balanced particles use capsule-shaped steel with a length of 50 mm, a width of 25 mm, and a thickness of 13 mm as the shell 1 .

[0047] to combine figure 1 and figure 2 , the housing 1 is spliced ​​by the first unit 2 and the second unit 3 , and the joint of the first unit 2 and the second unit 3 is arranged along the length direction of the housing 1 . The side facing the second unit 3 on the first unit 2 is provided with a slot 21, and the slot 21 is arranged around the circumference of the first unit 2; Block 31. When the first unit 2 and the second unit 3 are spliced ​​toge...

Embodiment 2-14

[0052] Example 2-14: a high-strength concrete, the only difference from Example 1 is that the parts by weight of the components are different; the components and parts by weight are shown in Table 1.

[0053] Components and their corresponding parts by weight in Table 1. Embodiments 1-14

[0054]

Embodiment 15

[0055] Example 15: a high-strength concrete, the only difference from Example 1 is that capsule-shaped steel with a thickness of 12 mm is used as the shell for the balancing particles.

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Abstract

The invention discloses high-strength concrete, and relates to the technical field of concrete. The high-strength concrete is prepared from the following components in parts by weight: 441 to 475 parts of cement, 570 to 641 parts of fine aggregate, 1069 to 1177 parts of coarse aggregate, 28 to 49 parts of a water reducing agent, 97 to 150 parts of fly ash, 132 to 168 parts of water and 178 to 203parts of a balance particle, wherein the balance particle comprises a hollow shell body, and a cooling composite material is arranged in the shell body; the cooling composite material is prepared froma first component and a second component, which absorb heat after reaction; the first component and the second component are separated through sticky rice paper arranged in the shell body; the stickyrice paper is matched with the section of the shell body. According to the high-strength concrete disclosed by the invention, the balance particle is added and is used for cooling, so that the effectof balancing hydration heat is realized.

Description

technical field [0001] The invention relates to the technical field of concrete, more specifically, it relates to a high-strength concrete. Background technique [0002] With the development of urban construction, the use of concrete is becoming more and more extensive. Concrete is one of the most important contemporary civil engineering materials; it is prepared in a certain proportion from cementitious materials, granular aggregates, water, and admixtures and admixtures added when necessary, and is uniformly stirred, densely formed, cured A hardened artificial stone. As buildings have higher and higher requirements for the strength of concrete itself, high-strength concrete has also emerged as the times require. [0003] The Chinese patent with the authorized announcement number CN101747002B and the authorized announcement date of October 24, 2012 discloses a high-strength concrete, which is composed of the following raw materials, calculated by weight of the ingredients...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B22/12C04B22/06
CPCC04B22/064C04B22/124C04B28/04C04B14/06C04B14/02C04B2103/302C04B18/08
Inventor 周中南
Owner 浙江晟周集团有限公司