A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a construction method and material for post-poured concrete of prefabricated composite floor slabs. 42.5 Mpa level common portland cement is adopted, and region II medium sand is adopted for river sand; the particle size of pebbles ranges from 5 mm to 31.5 mm; polypropylene fibers accounting for, by volume, 0.1% of the concrete are divided into two parts to be added into the concrete stirring process, and a calcium sulphoaluminate type concrete expansive material accounting for, by volume, 5% of the concrete is added into the concrete stirring process. The construction method has the advantages that edge joint leakage and cracking of the prefabricated composite floor slabs are effectively avoided, the splicing strength of the prefabricated composite floor slabs is increased, and the construction quality is ensured.
The invention discloses a construction method and material for post-poured concrete of prefabricated composite floor slabs. 42.5 Mpa level common portland cement is adopted, and region II medium sand is adopted for river sand; the particle size of pebbles ranges from 5 mm to 31.5 mm; polypropylene fibers accounting for, by volume, 0.1% of the concrete are divided into two parts to be added into the concrete stirring process, and a calcium sulphoaluminate type concrete expansive material accounting for, by volume, 5% of the concrete is added into the concrete stirring process. The construction method has the advantages that edge joint leakage and cracking of the prefabricated composite floor slabs are effectively avoided, the splicing strength of the prefabricated composite floor slabs is increased, and the construction quality is ensured.
Construction method for post-poured concrete of prefabricated composite floor slabs
ZHAO JIE (author)
2015-06-17
Patent
Electronic Resource
English
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