Title:
Early-Age Reliability of Ferrocement Slabs
Author(s):
S. T. Quek, S. H. On, P. Paramasivam, and S. L. Lee
Publication:
Materials Journal
Volume:
88
Issue:
6
Appears on pages(s):
644-649
Keywords:
ferrocement; models; probability theory; reliability; slabs; strength; Materials Research
DOI:
10.14359/1202
Date:
11/1/1992
Abstract:
For prefabricated ferrocement elements, their early-age strength may be a controlling design parameter in view of the need to minimize storage time for economic reasons. In this study, the development of the first crack and ultimate strengths of ferrocement structural elements at the early ages (1 to 28 days) is determined experimentally, and the data are fitted by a rectangular hyperbolic model that is linear on an age-strength-versus-age plot. Based on this model, a reliability analysis with respect to the first crack and ultimate strengths at the early ages is carried out for elements intended to be used as secondary roofing slabs. The results obtained will aid the designer and manufacturer in deciding the earliest date to put the slabs in service consistent with the level of risk specified or intended.