摘要
为促进复掺秸秆和粉煤灰在混凝土中的应用,研究了秸秆与粉煤灰的不同复掺量对混凝土坍落度、抗压强度、抗折强度和抗拉强度的影响。结果表明:掺入秸秆会降低混凝土的坍落度,且玉米秸秆降低坍落度的幅度最大,而粉煤灰可以有效改善秸秆混凝土的坍落度。通过将粉煤灰与秸秆复掺还可以有效调控混凝土的力学性能,其中掺入体积分数1%油菜秸秆、质量分数40%粉煤灰时,混凝土的各项力学性能最佳。
In order to promote the application of straw and fly ash in concrete,the influences of the added amounts of fly ash and different types of straw on slump,compressive strength,flexural strength and tensile strength of concrete were studied.The results showed that the straw could reduce the slump of concrete,and corn straws reduced the slump more.However,fly ash could improve the slump of concrete with straw.The mechanical properties of concrete could be controlled effectively by adding fly ash and straw.When volume fraction 1% rape straw and mass fraction 40% fly ash were added into concrete,the mechanical properties of concrete were the optimum.
作者
王同兵
WANG Tongbing(Qingdao Construction Engineering Management Service Center,Qingdao Shandong 266000,China)
出处
《当代化工》
2025年第2期289-293,共5页
Contemporary Chemical Industry
基金
国家自然科学基金项目(项目编号:51808323)。
