PLASTIC FIBROUS REINFORCEMENT FOR PORTLAND CEMENT,
Abstract
An investigation was made to determine methods for increasing the impact and shatter resistance of portland cement. Conclusions were that (1) all fibers investigated increased the impact strength of cement; (2) nylon, polypropylene, polethylene, and Saran imparted the greatest strength to cement, in the order listed; (3) nylon imparted the greatest impact strength of all the fibers investigated, since it was 83% by weight and 36% by volume stronger than its closest competitor, polypropylene, (4) nylon introduced into cement under optimum conditions increased the Izod impact strength more than 27 times that of the unreinforced cement; (5) fibers such as cotton, rayon acetate, Orlon, glass, and Dacron imparted little strength to the cement, because they were degraded by the high alkalinity in the cement; and (6) steel wires increased the flexural strength of cement and also increased its shatter resistance, but they did not impart the resilience which nylon provided. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 29, 1963
- Accession Number
- AD0427342
Entities
People
- S. Goldfein
Organizations
- United States Army Engineer Research and Development Laboratory