Open AccessStudy on dynamic properties and micro-structure of exceeding lean RCC
Author(s) -
Yunfeng Peng
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/565/1/012073
Subject(s) - ettringite , acicular , materials science , structural engineering , composite material , cement , engineering , microstructure , portland cement
In recent years, exceeding lean RCC has been widely used in the quality structure of hydraulic buildings due to its advantages of low cost and environmental friendliness. In order to study the dynamic characteristics of exceeding lean RCC under seismic action, cyclic loading test is carried out. According to the test results, the elasticity of the stress-strain relationship was determined by cyclic loading test under the condition that the maximum compressive stress did not exceed the linear range of the hard packing. On this basis, the linear range of cyclic load exceeding the limit of lean concrete is analyzed. In addition, the reaction products of each sample were tested, and it was found that ettringite with typical acicular structure was produced after adding cement. The micro-structure of exceeding lean RCC was studied by SEM and EDS.