不同料场相同埋深条件下骨料碱活性试验和抑制试验研究  

Study on aggregate alkali reactivity and inhibition tests under the same burial depth conditions in different material sites

作　　者：孟晓燕 MENG Xiaoyan(Xinjiang Water Conservancy and Hydropower Survey and Design Institute Co.,Ltd.,Urumqi 830000,China)

机构地区：[1]新疆水利水电勘测设计研究院有限责任公司,新疆乌鲁木齐830000

出　　处：《水利建设与管理》2025年第3期34-38,共5页Water Conservancy Construction and Management

摘　　要：本研究对不同料场相同埋深的粗细骨料进行了碱活性试验和碱-骨料反应抑制试验。结果表明,6组骨料中均含有碱活性矿物成分。进一步采用砂浆棒快速法测定骨料碱活性,6组骨料均含有具有潜在危害性反应的活性因子;在LC5-TK5、LC5-TK9中掺入20%粉煤灰,在LC4-TK2、LP7ZK4、LP7ZK2、LP7ZK3中掺入15%的粉煤灰能够有效抑制碱-骨料的发生,保障水利工程安全运行。This paper conducts alkali reactivity tests and alkali-aggregate reaction inhibition tests on coarse and fine aggregates from different material sites under the same burial depth conditions.The results show that all six groups of aggregates contain alkali-reactive mineral components.Further,the mortar bar method was used to determine the alkali reactivity of the aggregates,and all six groups exhibited active factors with potential harmful reactions.The incorporation of 20%fly ash in LC5-TK5 and LC5-TK9,and 15%fly ash in LC4-TK2,LP7ZK4,LP7ZK2,and LP7ZK3,effectively suppressed the alkali-aggregate reaction,ensuring the safe operation of hydraulic engineering projects.

关 键 词：骨料 碱活性 粉煤灰 

分 类 号：TU528[建筑科学—建筑技术科学]