Process for adopting fair-faced concrete pouring during building construction

A technology of fair-faced concrete and building construction, which is applied in the processing of building materials, construction, building construction, etc. It can solve problems such as hollowing, easy cracking of fair-faced concrete, and affect later use, and achieve the effect of long service life

Inactive Publication Date: 2019-03-05
成都美吉房地产营销策划有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that due to the failure to master the skills of the concrete pouring of the existing buildings, it is easy to crack and hollow after the clear-water concrete is poured, which affe

Method used

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Examples

Experimental program
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Effect test

Example Embodiment

[0016] Example:

[0017] The process of using fair-faced concrete pouring in building construction includes the following steps:

[0018] (1) Concrete mixing: Concrete mixing should be strictly measured according to the mix ratio, and the concrete strength grade is C30; P.o42.5 composite Portland cement is used, river sand is selected, and the gravel is 16-31.5mm gravel, and the weight ratio is : Water: cement: river sand: gravel: admixture = 0.457: 1.000: 2.498: 3.747: 0.060, the admixture is FS-A waterproofing agent, the water-cement ratio is: 0.457: 1, the amount of water per cubic concrete is 143kg, cement The dosage is 313kg, the dosage of river sand is 782kg, the dosage of stone is 1172kg, and the dosage of admixture is 18.8kg;

[0019] (2) Concrete transportation: pumping is used, and the concrete pump should be placed on a solid ground. When taking over the pipe, the joint must be installed firmly and stably, and the joint must be sealed with a gasket; pumping concret...

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PUM

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Abstract

The invention discloses a process for adopting fair-faced concrete pouring during building construction. According to the process, concrete mixing is strictly measured according to a mixing ratio, a pump is used for transportation, and a concrete pump should be placed on a solid ground; vibration time of the concrete is mastered, and vibration is not stopped until the surface of the concrete has uniform cement paste represented and does not have obvious sinking and a large number of risen air bubbles; after the concrete is cooled to <+>5 DEG C, and the difference value between the concrete surface temperature and the ambient temperature is greater than 15 DEG C after form removal, coverage and maintenance should be carried out on the surface of the concrete, so that the concrete is cooledslowly; the form removal is carried out on the concrete when the strength of test pieces under the same conditions reaches 3 MPa or 4 MPa, and in-time maintenance should be carried out after the formremoval to reduce the phenomena of chromatic aberration, shrinkage cracks and the like on the surface of the concrete, fair-faced concrete often adopts the method of combining plastic film or flame retardant mat coverage and watering maintenance, watering should be carried out before the form removal and during maintenance respectively to keep wet, and the maintenance time is not less than 7d. Theprocess for adopting fair-faced concrete pouring during the building construction can ensure that the fair-faced concrete meets the requirements after pouring and the service life of the concrete islonger.

Description

technical field [0001] The invention relates to a building construction technology, in particular to a technology for pouring fair-faced concrete in building construction. Background technique [0002] The buildings are mainly wooden structures, while the traditional western buildings are mainly masonry structures. Modern buildings are dominated by reinforced concrete. [0003] Ancient Chinese architecture has a simple and elegant style, mainly using thatch and wood as building materials, and using wooden structures as structural methods (columns, beams, squares, purlins, rafters, etc.), combined in accordance with the actual size, shape and spacing required by the structure. Together. This architectural structure reflects the clarity, order and stability of the ancient patriarchal society. Since the beams and columns made of wooden materials are not easy to form a huge internal space, ancient buildings cleverly used the natural space outside the port to form a courtyard....

Claims

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Application Information

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IPC IPC(8): E04G21/00C04B28/04
CPCE04G21/00C04B28/04C04B2201/50C04B14/068C04B14/02C04B2103/65
Inventor 吴洋忠
Owner 成都美吉房地产营销策划有限公司
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