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Fabricated building construction process

A kind of building construction and assembly technology, which is applied in the direction of construction, building structure, and building material processing, etc. It can solve the problems of poor integrity and air tightness of structural connections, inability to integrally connect concrete structures, and inability to integrally connect the bottom of wall panels, etc. , to achieve the effect of making up for the defects in the fiber, reducing the thickening effect, and quickly developing the strength

Pending Publication Date: 2022-06-07
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

[0003] For a construction site with a short construction period and no PC component stacking site, a more reasonable and detailed construction plan is required to ensure the smooth progress of the project. The existing prefabricated building assembly method first pours concrete and then installs the wall panel, resulting in the bottom of the wall panel It cannot be connected as a whole, and the steel bars can only be connected through the connection method of steel sleeve grouting. The concrete structure cannot be connected as a whole, forming a horizontal joint of the structure as a whole, which reduces the earthquake resistance; Poor air tightness; poor structural connection integrity and low strength resulting in low shock resistance and poor durability

Method used

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Embodiment 1

[0032] A prefabricated building construction process, comprising the following steps:

[0033] (1) Design and manufacture prefabricated components according to design requirements, the prefabricated components include wall panels, floor slabs and stairs, and the outer wall panels in the prefabricated components are provided with reserved holes for connecting walls;

[0034] (2) Numbering the prefabricated components, drawing the construction control line, measuring and laying out the line at the installation site;

[0035] (3) Installation of prefabricated components, install the wall panels of the first layer of buildings on the prepared floor layer, and then correct, fix, and pour concrete slurry; after the concrete slurry poured into the wall panels reaches the strength, the first layer A layer of outer wall protection frame is installed on the outer wall plate of the building through the preset connecting wall reserved holes;

[0036] (4) Install the floor slab of the nex...

Embodiment 2

[0039] A perfusion concrete slurry for prefabricated building construction, in parts by weight, the concrete slurry has the following components: 140 parts of Portland cement, 10 parts of beta-hemihydrate gypsum, and a fineness modulus of 2.6 -2.9 zone II medium sand 125 parts, ii grade separation fly ash 30 parts, limestone micropowder 18 parts, sulfamate water reducing agent 3 parts, naphthalene water reducing agent 2 parts, sodium gluconate 3 parts, 8 parts of interface enhancer, the water-to-binder ratio is 0.35;

[0040] The interface reinforcing agent is a graphene-based modified carbon fiber, and its preparation method comprises the following steps:

[0041]S1, carry out 10000rpm × 10min high-speed centrifugation to the aqueous dispersion of graphene oxide to remove impurities and large aggregates, take the supernatant and concentrate to a concentration of 5-8mg / mL, to obtain a concentrated solution, under stirring conditions, in all Slowly add an anhydrous ethanol sol...

Embodiment 3

[0045] A perfusion concrete slurry for prefabricated building construction, in parts by weight, the concrete slurry has the following components: 140 parts of Portland cement, 10 parts of beta-hemihydrate gypsum, and a fineness modulus of 2.6 -2.9 zone II medium sand 125 parts, ii grade separation fly ash 30 parts, limestone micropowder 18 parts, sulfamate water reducing agent 3 parts, naphthalene water reducing agent 2 parts, sodium gluconate 3 parts, 8 parts of interface enhancer, the water-to-binder ratio is 0.35;

[0046] The interface reinforcing agent is a graphene-based modified carbon fiber, and its preparation method comprises the following steps:

[0047] S1, carry out 10000rpm × 10min high-speed centrifugation to the aqueous dispersion of graphene oxide to remove impurities and large aggregates, take the supernatant and concentrate to a concentration of 5-8mg / mL, to obtain a concentrated solution, under stirring conditions, in all Slowly add an anhydrous ethanol so...

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Abstract

The invention provides an assembly type building construction technology, and belongs to the technical field of buildings, the assembly type building construction technology comprises the steps of prefabricated part designing and manufacturing, measuring, paying off, prefabricated part installing, correcting, fixing, concrete slurry pouring and the like, and the concrete slurry is prepared from, by weight, 130-150 parts of Portland cement, 8-10 parts of gypsum and 115-160 parts of fine aggregate; the concrete comprises the following components in parts by weight: 25-45 parts of an active admixture, 15-30 parts of an inactive admixture and 8-20 parts of an additive, the water-binder ratio is 0.29-0.45, and the additive comprises a high-efficiency water reducing agent and an interface reinforcing agent; the concrete slurry disclosed by the invention has the characteristics of good fluidity, low expansion degree and fast strength development, also has high coagulation strength and excellent workability and construction performance, can meet the requirements of an assembly construction grouting technology, and has positive promotion significance for assembly type building construction.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a prefabricated building construction process. Background technique [0002] With the continuous acceleration of the pace of modern life and the continuous increase of labor costs, the high integration and industrialization of residential buildings has become a new general direction of construction. In addition, with the gradual development of building materials in the direction of factoryization and prefabrication, prefabricated and modular buildings have emerged as the times require. As we all know, a prefabricated building refers to a type of building in which all the components required for a house are manufactured in a factory by a factory assembly line, that is, PC components, and then transported to the construction site, where the PC components are hoisted and spliced ​​on site. . The prefabricated building has been widely used in actual production and life because...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/04E04G21/02E04G21/14C04B20/02C04B28/04D01F9/24
CPCE04B1/04E04B1/043E04G21/02E04G21/14C04B28/04C04B20/023D01F9/24C04B2201/50C04B22/143C04B14/06C04B18/08C04B18/146C04B14/14C04B18/142C04B14/28C04B2103/302C04B24/10C04B14/386C04B2103/10Y02W30/91
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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