Fracture properties of lightweight concrete
- National Taiwan Inst. of Technology, Taipei (Taiwan, Province of China). Dept. of Construction Engineering
- Taiwan Provincial Hsiu-Shui Vocational School, Chang-Hua (Taiwan, Province of China)
This study presents the experimental results of fracture properties of concrete incorporating two kinds of domestic lightweight aggregate (LWA) manufactured through either a cold-bonding or a sintering process. The cold-bonded aggregates were mainly made of pulverized fly-ash through a cold-pelletization process at ambient temperature, while the sintered aggregates were made of clay and shale expanded by heat at a temperature near 1,200 C. Experimental results show that the 28-day compressive strengths of {phi} 100 x 200 mm cylindrical concrete specimen made of those LWAs range from 30.1 (sintered) to 33.9 MPa (cold-bonded). By means of size effect law, it is found that the fracture energies, G{sub f}, were 34.42 N/m (sintered) and 37.2 N/m (cold-bonded), respectively.
- OSTI ID:
- 227992
- Journal Information:
- Cement and Concrete Research, Vol. 26, Issue 2; Other Information: PBD: Feb 1996
- Country of Publication:
- United States
- Language:
- English
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