工程质量
工程質量
공정질량
QUALITY OF CIVIL ENGINEERING AND CONSTRUCTION
2014年
12期
74-77
,共4页
钻芯法%混凝土芯样劈裂抗拉强度%尺寸效应系数
鑽芯法%混凝土芯樣劈裂抗拉彊度%呎吋效應繫數
찬심법%혼응토심양벽렬항랍강도%척촌효응계수
metohod of drilling core%splitting fensile strength of concrete%dimensional effect coefficient
采用钻芯法检测混凝土劈裂抗拉强度,混凝土劈裂抗拉检测采用φ100×200 mm、φ100×100 mm、φ75×150 mm、φ75×75 m m四种芯样,试验证明:混凝土芯样劈裂抗拉强度与混凝土标准立方体试块劈裂抗拉强度密切相关,采用不同直径芯样应考虑尺寸效应的影响。建议优先采用φ100的芯样试件,其尺寸效应系数为0.95。
採用鑽芯法檢測混凝土劈裂抗拉彊度,混凝土劈裂抗拉檢測採用φ100×200 mm、φ100×100 mm、φ75×150 mm、φ75×75 m m四種芯樣,試驗證明:混凝土芯樣劈裂抗拉彊度與混凝土標準立方體試塊劈裂抗拉彊度密切相關,採用不同直徑芯樣應攷慮呎吋效應的影響。建議優先採用φ100的芯樣試件,其呎吋效應繫數為0.95。
채용찬심법검측혼응토벽렬항랍강도,혼응토벽렬항랍검측채용φ100×200 mm、φ100×100 mm、φ75×150 mm、φ75×75 m m사충심양,시험증명:혼응토심양벽렬항랍강도여혼응토표준립방체시괴벽렬항랍강도밀절상관,채용불동직경심양응고필척촌효응적영향。건의우선채용φ100적심양시건,기척촌효응계수위0.95。
Test on splitting fensile strength of concrete by drilling core is introduced. The dimensions of test core specimens are φ100×200mm、φ100×100mm、φ75×150mm、φ75×75mm. The test results indicate that there is osculating correlation of splitting fensile strength of concrete between drilling cores and cube coupons, at the same time,dimensional effect should be taken into consideration using different diameter cores during the test. According to the test research results,priority use of the dimension of main core specimens φ100 is suggested,whose dimensional effect coefficient is 0.95.