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楊建江1,楊 琳2
(1天津大學(xué)建工學(xué)院,天津300072;2河南徐輝建筑設(shè)計事務(wù)所,鄭州450003)[摘要] 通過試驗研究分析了齡期對砂漿強(qiáng)度的影響,并將回彈法、砂漿片剪切法試驗檢測所得的砂漿強(qiáng)度試驗實測值與標(biāo)準(zhǔn)試驗值進(jìn)行比較,得出了回彈法、砂漿片剪切法之問的關(guān)系和與標(biāo)準(zhǔn)試驗值之問的差異。采用最小二乘法原理以5種函數(shù)形式分別對不同的測試方法所得的試驗測試數(shù)據(jù)進(jìn)行了回歸計算,分別給出天津市各檢測方法的砂漿測強(qiáng)曲線和測強(qiáng)計算公式,并進(jìn)行了誤差分析。
[關(guān)鍵詞] 養(yǎng)護(hù)齡期;回彈法;砂漿片剪切法;砂漿強(qiáng)度;抗壓強(qiáng)度;測強(qiáng)曲線Test research on mortar strength detection with rebound method, shear method and drawing of intensity curves
Yang Jianjiang1, Yang Lin2
(1 Civil Engineering College ofTianjin University, Tianjin 300072, China; 2 He'nan Xuhui Architecture Design Firms, Zhengzhou 450003, China)Abstract: The impact of age on mortar strength was mainly analyzed. With the standard value as the datum, the actual values obtained by rebound method and shear method were compared with standard values. The relationship between two methods and the difference from standard value were gained. Using the principle of least squares method, five kinds of functions were adopted to regression analysis test value. Finally detecting strength curves of Tianjin and formula of calculating strength are obtained.
Keywords: curing age; rebound method; shear method of mortar flake; mortar strength; compressive strength; detecting strength curve