Experimental Study on the Influence of Expansion Agents and Fibers on the Dry Shrinkage Performance of Concrete
摘要
In order to study the influence of expansion agents and fibers on the dry shrinkage of concrete, this paper designed and implemented dry shrinkage tests on plain concrete and various fiber reinforced concrete after adding expansion agents, as well as dry shrinkage tests on concrete with different lengths and types of fibers added. The mechanism of the influence of fibers and expansion agents on the dry shrinkage performance of concrete was revealed. The experimental results show that expansion agents have an improvement effect on the dry shrinkage performance of various types of concrete, while fibers have varying effects on the dry shrinkage of concrete due to their length and equivalent diameter. The research results have guiding significance on how to improve the dry shrinkage performance of concrete.