材料科学与工程学报2024，Vol.42Issue(3)：456-460,5.DOI:10.14136/j.cnki.issn1673-2812.2024.03.014
高炉钛渣基碱激发水泥的制备及其性能
Preparation and Performance of Titanium-bearing Blast Furnace Slag Based Alkali-activated Cement
摘要
Abstract
Using titanium-bearing blast furnace slag as cement mixture has been currently acknowledged as an effective way for its comprehensive utilization.Titanium-bearing blast furnace slag based alkali-activated cement was prepared by using titanium-bearing blast furnace slag as raw material,and the mixture of hydroxide(NaOH)and water glass(Na2O·nSiO2)as activator.The influences of activator modulus,activator content and curing temperature on the performance of titanium-bearing blast furnace slag based alkali-activated cement were investigated.The mineral phase compositions and microstructure of materials were analyzed through X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),and scanning electron microscopy/energy dispersive X-ray spectroscopy(SEM/EDS).The results show that the activator modulus,activator content and curing temperature have important influence on the compressive strengths of samples.The compressive strength of samples with activator modulus of 1.6 and activator content of 8%reach up to 26.6 MPa after curing for 3 d at 65℃.The reaction variation content of amorphous phase and crystalline(i.e.perovskite CaTiO3)are 6.77%and 5.95%,respectively,which indicates that the titanium-bearing blast furnace slag is corroded and activated with alkali activator to promote the formation of C-S-H gels,thereby accelerating the development of compressive strength of materials.关键词
高炉钛渣/碱激发水泥/制备/表征分析Key words
Titanium-bearing blast furnace slag/Alkali-activated cement/Preparation/Characteri-zation analysis分类
资源环境引用本文复制引用
闫铁成,刘万锋..高炉钛渣基碱激发水泥的制备及其性能[J].材料科学与工程学报,2024,42(3):456-460,5.基金项目
庆阳市科技人才专项计划资助项目(QY-STK-2022A-002) （QY-STK-2022A-002）
甘肃省高校教师创新基金资助项目(2023A-145) （2023A-145）
