- 张 鹏，王 磊，王 娟，焦美菊
Abstract：The slump, slump spread, compressive strength and compressive elastic modulus tests were carried out, and the effects of PVA fiber with volume content of 0.05%, 0.1%, 0.15%, and 0.2% and nano-CaCO3 particles with mass content of 1%, 2%, 3%, and 4% on the workability and mechanical properties of fly ash concrete were studied. The results show that the compressive strength and compressive elastic modulus of concrete increase first and then decrease with the increase of nano-CaCO3 content within a certain range, and when the nano-CaCO3 content is 3%, the compressive strength and compressive elastic modulus can reach the maximum. The compressive strength increases first and then decreases with the increase of PVA fiber content, while the compressive elastic modulus decreases gradually as a whole, and when the content of PVA fiber are 0.15% and 0.05%, the compressive strength and compressive elastic modulus reach the maximum. The workability of fresh concrete gradually decreases with the increase of nano-CaCO3 and PVA fiber content.
张鹏,王磊,王娟,等.纳米CaCO3和PVA纤维增强混凝土工作性及力学性能的研究[J].混凝土与水泥制品,2020(3):42-45,54. ZHANG P,WANG L,WANG J,et al.Study on the Workability and Mechanical Properties of Nano-CaCO3 and PVA Fiber Reinforced Concrete[J].China Concrete and Cement Products,2020(3):42-45,54.