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Concrete formula

A concrete and formula technology, applied in the field of concrete, can solve the problems of low construction efficiency, high cost and unsatisfactory quality of slip form, and achieve the effect of improving construction quality and production efficiency, high shape stability and good compactness

Inactive Publication Date: 2020-08-14
昭通公路局 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of the background technology, the present invention provides a concrete formula to solve the problems of low construction efficiency, unsatisfactory quality and high cost of sliding formwork in the prior art

Method used

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with embodiment.

[0028] In the present embodiment, the raw material components and parts by weight that the concrete formula includes are: 100 parts of coarse aggregate, 15 parts of fine aggregate, 30 parts of cementitious material, 20 parts of water; Wherein the raw material component that cementitious material comprises and The parts by weight are: 3-8 parts of fly ash, 6-12 parts of nano-clay, and 11-17 parts of cement.

[0029] Wherein, described cement is the P.042.5 ordinary Portland cement that certain cement plant produces, and its chemical composition and physical mechanical property are as shown in table 1 and table 2:

[0030] Table 1

[0031]

[0032] Table 2

[0033]

[0034] The gradation of the coarse aggregate is: 10mm-20mm:5mm-10mm=4:6, and its physical and mechanical properties are as shown in table 3:

[0035] table 3

[0036]

[0037] The fine aggregate is the fine sa...

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Abstract

The invention provides a concrete formula. The concrete formula is characterized by comprising the following raw material components in parts by weight: 100 parts of coarse aggregate, 15 parts of fineaggregate, 30 parts of cementing material and 20 parts of water, wherein the cementing material is prepared from the following raw material components in parts by weight: 3 to 8 parts of fly ash, 6 to 12 parts of nano clay and 11 to 17 parts of cement. The concrete prepared by adopting the concrete formula is good in flowability, compactness and filling property; meanwhile, the concrete is high in thixotropic property, low in slump and good in shape stability, the concrete obtained according to the formula is applied to slip form construction, the construction cost can be reduced, and the construction quality and the production efficiency of slip form construction are improved.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete formula. Background technique [0002] Slipform construction is a construction method in which a hydraulic lifting device is used to slide and lift the formwork to pour a vertical concrete structure. Slipform construction has the advantages of high degree of mechanization, civilized construction, saving a lot of formwork, fast construction speed, and low cost, and has been increasingly popularized in the construction of a large number of structures and high-rise civil buildings. During the slipform construction process, in order to eliminate the air bubbles in the concrete, make the concrete compact and improve the filling performance of the concrete, the slipform paver is usually equipped with UHF vibrating rods arranged continuously at equal intervals, and the frequency is generally 9000 times / min. In order to improve the workability of fresh concrete, increase the...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B14/10
CPCC04B28/04C04B18/08C04B14/102C04B20/008C04B14/02
Inventor 陈礼游陈松夏志林王毅谢文能杨文富谭洋伟
Owner 昭通公路局