Experimental Study on Alkali Reactivity of Excavated Materials for the Lower Reservoir of Dianbai Pumped Storage Project
HE Meng
HE Zhuoming
Abstract：The lower reservoir of the Dianbai Pumped Storage Power Station in Guangdong adopts a concrete gravity dam.From the perspective of economic efficiency and construction convenience,the optimal choice is to use excavated materials from the underground chambers as concrete aggregates.Therefore,it is necessary to study the alkali reactivity characteristics of the excavated materials in the lower reservoir chambers to determine the alkali reactivity properties of the aggregates.For aggregates with potential alkali reactivity hazards,experimental studies are also required to identify effective mitigation measures,providing scientifically accurate experimental data to support subsequent design,construction,and aggregate selection.
Keywords：pumped storage power stationalkali reactivity of aggregatesmortar bar accelerated methodconcrete prism methodexpansion rate
Publication Date：2026-06-20
Online Publishing Date：2026-09-16(First online date of this platform, not the publication date of the document)
Pages：5( 127-131 )