| 摘要 |
<p>Synthetic fibre bundles designed for use in concrete, mortar or cement, the bundles comprising about 10-10,000 filaments per bundle, the filaments consisting essentially of a polyolefin such as polypropylene or polyethylene, a polyolefin derivative, a polyester, a polyamide or a mixture of the foregoing and having a length of about 1 to about 30 mm, a mean transverse dimension of about 5 to about 50 νm and an aspect ratio of about 100 to about 1000, the individual filaments having a surface tension which allows them to become substantially homogeneously dispersed in a concrete, mortar or paste with conventional mixing in conventional concrete mixing equipment; cement-based concretes, mortars and pastes comprising the fibre bundles, and a method of producing the fibre bundles and the cement based materials.</p> |
