双掺海砂混凝土的性能研究

Study on the properties of concrete admixed with sand

海砂混凝土中有害氯离子是阻碍其应用的主要问题,提出了采用粉煤灰和磨细矿渣2种活性矿物复掺的方法,固化海砂混凝土中有害氯离子含量,提高海砂混凝土的耐久性。研究结果表明:双掺20%粉煤灰及30%磨细矿粉制备的海砂混凝土具有良好的力学性能及耐久性能。

Harmful chloride ionhloride ions in sea sand concrete are the main problems that hinder in its application.Sand concrete experiment were conducted using fly ash, ground slag and other active minerals mixed together,the working performance, mechanical properties and dttrabili- ty of different ratios of concrete have been researched.The results showed that, compared with the control group, double doped 20% fly ash and 30% fine slag powder preparation of sea sand concrete had good mechanics performance and durability, and the later strength had rapid develop- ment.