摘要
对边长分别为100、150、200m m的透水混凝土立方体试块抗压强度进行对比试验,并对试验结果进行回归分析,得到不同尺寸试块强度之间的关系。试验结果表明:在本试验条件下,相对于边长150m m的立方体试块,除了10%孔隙率的边长100m m立方体试块尺寸效应不明显外,15%和20%孔隙率条件下的边长分别为100、200m m立方体试块的尺寸效应以及10%孔隙率的边长200m m立方体试块的尺寸效应都超过普通混凝土。
The cubic specimen size effect on compressive strength of pervious concrete was studied, using three different sizes of cubic speci- men（ side length 100,150、 200mm ）.Data fi＇om the experiment was also analyzed with linear regression method, and the relationship of strength of the different size series were drawn out.The experimental results showed that compared with normal concrete,the size of specimens of pervious concrete more significantly affected the compressive strength, except for the case of 100mm side length specimen with 10% void ratio.
出处
《混凝土》
CAS
CSCD
北大核心
2007年第5期15-18,共4页
Concrete
关键词
透水混凝土
尺寸效应
线性回归分析
孔隙率
pervious concrete
size effect
linear regression analysis
void ratio
