Concrete cast-in-place process for building construction

A technology for building construction and concrete, applied in construction, infrastructure engineering, sustainable waste treatment, etc., can solve the problems of large shrinkage deformation, low tensile strength, easy to produce cracks, etc., to achieve easy control and operation, high tensile strength. Powerful, easy-to-implement effects

Active Publication Date: 2022-05-24
瑞洲建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has low tensile strength, poor crack resistance, and large shrinkage deformation, so it is easy to produce cracks; in addition, the pouring process of concrete will also affect the final properties of concrete

Method used

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  • Concrete cast-in-place process for building construction
  • Concrete cast-in-place process for building construction
  • Concrete cast-in-place process for building construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A concrete for building construction, calculated in parts by weight, comprising the following components:

[0045] 100 parts of ordinary Portland cement PO42.5, 78 parts of fly ash, 312 parts of coarse aggregate, 227 parts of fine aggregate, 14 parts of modified basalt fiber, 1.5 part of polyvinyl alcohol fiber, 0.5 part of polycarboxylate Aqua and 55 parts water.

[0046]The particle diameter of fly ash is 50-100μm; the source of coarse aggregate is mountain sand, river sand and lake sand, and the particle diameter is 0.15-4.75mm; the source of fine aggregate is crushed stone and pebbles, and the particle diameter is 4.75- 8mm; the length of the modified basalt fiber is 5-10mm, and the diameter is 10-15μm; the length of the polyvinyl alcohol fiber is 10-15mm, and the diameter is 30-45μm.

[0047] The preparation method of modified basalt fiber is:

[0048] S1. Pretreatment of Basalt Fiber:

[0049] Weigh sodium hydroxide and mix with deionized water, stir until comp...

Embodiment 2

[0063] A concrete for building construction, calculated in parts by weight, comprising the following components:

[0064] 100 parts of ordinary Portland cement PO42.5, 66 parts of fly ash, 275 parts of coarse aggregate, 212 parts of fine aggregate, 11 parts of modified basalt fiber, 1 part of polyvinyl alcohol fiber, 0.5 part of polyacrylate water reducing agent and 45 parts water.

[0065] The particle diameter of fly ash is 50-100μm; the source of coarse aggregate is mountain sand, river sand and lake sand, and the particle diameter is 0.15-4.75mm; the source of fine aggregate is crushed stone and pebbles, and the particle diameter is 4.75- 8mm; the length of the modified basalt fiber is 5-10mm, and the diameter is 10-15μm; the length of the polyvinyl alcohol fiber is 10-15mm, and the diameter is 30-45μm.

[0066] The preparation method of modified basalt fiber is:

[0067] S1. Pretreatment of Basalt Fiber:

[0068] Weigh sodium hydroxide and mix with deionized water, sti...

Embodiment 3

[0082] A concrete for building construction, calculated in parts by weight, comprising the following components:

[0083] 100 parts of ordinary Portland cement PO42.5, 82 parts of fly ash, 338 parts of coarse aggregate, 254 parts of fine aggregate, 16 parts of modified basalt fiber, 2 parts of polyvinyl alcohol fiber, 1 part of polycarboxylate Aqua and 55 parts water.

[0084] The particle diameter of fly ash is 50-100μm; the source of coarse aggregate is mountain sand, river sand and lake sand, and the particle diameter is 0.15-4.75mm; the source of fine aggregate is crushed stone and pebbles, and the particle diameter is 4.75- 8mm; the length of the modified basalt fiber is 5-10mm, and the diameter is 10-15μm; the length of the polyvinyl alcohol fiber is 10-15mm, and the diameter is 30-45μm.

[0085] The preparation method of modified basalt fiber is:

[0086] S1. Pretreatment of Basalt Fiber:

[0087] Weigh sodium hydroxide and mix with deionized water, stir until comple...

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Abstract

The invention discloses an on-site pouring process of concrete for building construction, and the concrete for building construction comprises the following components in parts by weight: 100 parts of Portland cement, 66-82 parts of fly ash, 275-338 parts of coarse aggregate, 212-254 parts of fine aggregate, 11-16 parts of modified basalt fiber, 1-2 parts of polyvinyl alcohol fiber, 0.5-1 part of a water reducing agent and 45-55 parts of water. The invention discloses a concrete cast-in-place process for building construction. The process of the cast-in-place process comprises the steps of concrete preparation and cast-in-place forming. The concrete used for pouring construction adopts a unique formula, the pouring process is relatively simple and convenient to implement and easy to control and operate, and the poured concrete also has relatively high tensile strength and crack resistance and relatively small shrinkage deformation.

Description

technical field [0001] The invention relates to the field of building construction, in particular to an on-site pouring process of concrete for building construction. Background technique [0002] Building construction refers to the engineering entity formed through the construction of various housing buildings and their ancillary facilities and the installation of their supporting lines, pipelines, and equipment. Concrete is abbreviated as "concrete (tóng)", which refers to the collective name of engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Concrete is one of the most important civil engineering materials in contemporary times. It is made up of cementitious materials, granular aggregates (also called aggregates), water, and admixtures and admixtures added when necessary in a certain proportion. It is a kind of artificial stone formed by uniform stirring, compact molding, curing and hardening. Concrete has the cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/10C04B14/46E02D15/02C04B111/34
CPCC04B28/04C04B20/1074C04B14/4643E02D15/02C04B2201/50C04B2111/343C04B18/08C04B16/0641C04B2103/302C04B14/06C04B14/02Y02W30/91
Inventor 龚孙武陈建吴明和汪庆豪陈炯翰叶苏剑
Owner 瑞洲建设集团有限公司
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