Research on Improvement of Mechanical Properties and Condensation Mechanism on Alkali Activated Materials by Sodium Silicate
In order to further enhance the mechanical properties of alkali activated materials and master the con-densation law,the reactivity of slag alkali activated materials was enhanced through the improvement of different kinds and proportions of sodium silicate.The mechanical properties of the samples were observed regularly and the condensation law was further analyzed.The results show that both solid and liquid sodium silicate can significantly improve the compressive strength and shorten the initial and final setting time.With the increase of solid sodium sil-icate content,the compressive strength at first increases and then decreases.The large amount of crystallization of solid sodium silicate in the sample is the main reason for the decrease of compressive strength.With the increase of liquid sodium silicate content,the compressive strength of the specimen increases significantly at first and then tends to be stable,which shows that its reinforcement has the maximum limit.The excitation effect of liquid sodium silicate is better than that of solid.
NETL
NSTL
万方数据
维普
