碱矿渣混凝土与钢筋早期粘结强度时变规律研究
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摘要
通过对不同强度的碱矿渣混凝土与钢筋组成拉拔试件进行试验,研究自然环境下钢筋与碱矿渣混凝土早龄期粘结强度的时变规律。试验结果表明:碱矿渣混凝土早龄期粘结强度具有明显的龄期效应;随着抗压强度的增加,粘结强度有增长趋势;通过对试验结果进行回归分析,拟合得到早龄期粘结强度时变规律公式,可为以后的工程实践提供理论参考。
Based on the test results of specimens made up by different strengths of inorganic polymer concrete( IPC) and rebar,the time-varying regularity of bond strength between young IPC and rebar under natural conditions is studied. The results of the experiment show that bond strength has a significant effect on the age.Meanwhile,the bond strength increases with compressive strength. The time-varying regularity formulas for the bond strength at early ages are derived by the regression analysis of the results to provide theoretical reference for future engineering practice.
Based on the test results of specimens made up by different strengths of inorganic polymer concrete( IPC) and rebar,the time-varying regularity of bond strength between young IPC and rebar under natural conditions is studied. The results of the experiment show that bond strength has a significant effect on the age.Meanwhile,the bond strength increases with compressive strength. The time-varying regularity formulas for the bond strength at early ages are derived by the regression analysis of the results to provide theoretical reference for future engineering practice.
引文
[1]唐晓丽,秦宇航,屈文俊.混凝土低龄期抗压与粘结强度时变规律试验研究[J].建筑结构学报,2009,30(4):145-150
[2]陈超,宋晓滨.早龄期混凝土与钢筋粘结时变性能试验研究[J].结构工程师,2014,30(3):160-167
[3]Chapman R A,Shah S P.Early-age bond strength in reinforced concrete[J].ACI Materials Journal,1987,84(6):501-510
[4]Hughes B P,Videla C.Design criteria for early-age bond strength in reinforced concrete[J].Materials and Structures,1992,25(8):445-463
[5]胡晓鹏,牛荻涛,张永利.粉煤灰混凝土早期黏结性能试验研究[J].建筑结构学报,2013,34(1):139-146
[6]Ng T S,Voo Y L,Foster S J.Sustainability with Ultrahighperformance and geopolymer concrete construction[A].Fardis MN.Innovative Materials and Techniques in Concrete Construction:ACES Workshop[C].Dordrecht:Springer,2012:81-100
[7]付亚伟,黄命辉,崔云长.新型绿色无机聚合物道面混凝土性能与应用研究[J].中国材料科技与设备,2014,(3):36-39
[8]曹定国等.快凝早强无机聚合物混凝土研究及应用[M].北京:科学出版社,2015
[9]Sofi M,Deventer J S J V,Mendis P A,et al.Bond performance of reinforcing bars in inorganic polymer concrete(IPC)[J].Journal of Materials Science,2007,42(9):3107-3116
[10]Prabir Kumar Sarker.Bond strength of reinforcing steel embedded in fly ash-based geopolymer concrete[J].Materials and Structures,2011,44(5):1021-1030
[11]袁晓辉,卢哲安,范小春,等.无机聚合物混凝土-钢筋拉拔试验研究[J].武汉理工大学学报,2013,35(6):117-122
[12]袁晓辉,卢哲安,任志刚.无机聚合物混凝土-钢筋拉拔有限元分析[J].西安建筑科技大学学报(自然科学版),2013,45(2):209-215
[13]GB/T 50152—2012,混凝土结构试验方法标准[S]
[14]SL 352—2006,水工混凝土试验规程[S]
[15]杜江.方钢管无机聚合物混凝土柱力学性能试验研究[D].重庆:后勤工程学院,2016:26-28
[16]GB/T 4209—2008,工业硅酸钠[S]
[2]陈超,宋晓滨.早龄期混凝土与钢筋粘结时变性能试验研究[J].结构工程师,2014,30(3):160-167
[3]Chapman R A,Shah S P.Early-age bond strength in reinforced concrete[J].ACI Materials Journal,1987,84(6):501-510
[4]Hughes B P,Videla C.Design criteria for early-age bond strength in reinforced concrete[J].Materials and Structures,1992,25(8):445-463
[5]胡晓鹏,牛荻涛,张永利.粉煤灰混凝土早期黏结性能试验研究[J].建筑结构学报,2013,34(1):139-146
[6]Ng T S,Voo Y L,Foster S J.Sustainability with Ultrahighperformance and geopolymer concrete construction[A].Fardis MN.Innovative Materials and Techniques in Concrete Construction:ACES Workshop[C].Dordrecht:Springer,2012:81-100
[7]付亚伟,黄命辉,崔云长.新型绿色无机聚合物道面混凝土性能与应用研究[J].中国材料科技与设备,2014,(3):36-39
[8]曹定国等.快凝早强无机聚合物混凝土研究及应用[M].北京:科学出版社,2015
[9]Sofi M,Deventer J S J V,Mendis P A,et al.Bond performance of reinforcing bars in inorganic polymer concrete(IPC)[J].Journal of Materials Science,2007,42(9):3107-3116
[10]Prabir Kumar Sarker.Bond strength of reinforcing steel embedded in fly ash-based geopolymer concrete[J].Materials and Structures,2011,44(5):1021-1030
[11]袁晓辉,卢哲安,范小春,等.无机聚合物混凝土-钢筋拉拔试验研究[J].武汉理工大学学报,2013,35(6):117-122
[12]袁晓辉,卢哲安,任志刚.无机聚合物混凝土-钢筋拉拔有限元分析[J].西安建筑科技大学学报(自然科学版),2013,45(2):209-215
[13]GB/T 50152—2012,混凝土结构试验方法标准[S]
[14]SL 352—2006,水工混凝土试验规程[S]
[15]杜江.方钢管无机聚合物混凝土柱力学性能试验研究[D].重庆:后勤工程学院,2016:26-28
[16]GB/T 4209—2008,工业硅酸钠[S]