|Table of Contents|

Properties and simulation analysis of foamed concrete with polypropylene fiber

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2016年04期
Page:
504-
Research Field:
Publishing date:

Info

Title:
Properties and simulation analysis of foamed concrete with polypropylene fiber
Author(s):
Sun Yafei12Geng Fei1Gao Peiwei1Li Haoran1Zhang Lifang1Liu Hongwei12
1.Department of Civil Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China; 2.Department of Civil Engineering,Yancheng Institute of Technology,Yancheng 224051,China
Keywords:
foamed concretes mix proportion polypropylene fiber property finite element
PACS:
TU528
DOI:
10.14177/j.cnki.32-1397n.2016.40.04.020
Abstract:
The effect of water binder ratio and dosages of polypropylene fiber and fly ash on the properties of grade-400 foam concretes are investigated by orthogonal test.The results show that the optimum mix proportion for grade-400 foam concretes is:water binder ratio of 0.58,0.10% of polypropylene fiber and 0% of fly ash.The compressive strengths of foam concretes are 0.76 MPa at 7 days and 1.32 MPa at 28 days,respectively.The foam concretes possesse a water absorption rate of 17.5%,a dry shrinkage value of 0.98 mm/m and a thermal conductivity of 0.072 W/(m·K).The stress and displacement of in-cast-in foamed concretes enclosing wall are all satisfied under the wind load or the horizontal seismic load,providing theoretical basis for its application.

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Last Update: 2016-06-30