标准碳化环境下基于材料参数的混凝土碳化深度多因素计算模型
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摘要
为了准确评估混凝土的抗碳化性能和耐久性,根据混凝土碳化深度分析的实用预测模型获得了7822组标准碳化环境条件(温度为(20±2)℃,相对湿度为(70±5)%,CO_2浓度为(20±3)%)下普通混凝土、单掺粉煤灰混凝土、单掺矿渣混凝土以及复掺粉煤灰和矿渣混凝土的碳化深度数据,定量分析了水胶比(或水灰比)、粉煤灰掺量和矿渣掺量等对混凝土碳化深度的影响规律,进而采用基于最小二乘法的非线性回归分析,基于材料参数建立了标准碳化环境下混凝土碳化深度多因素计算模型,并通过文献搜集的试验数据验证了该方法提出的模型的合理性和适用性。
In order to accurately evaluate the carbonation resistance and durability of concrete,7822 sets of date of carbonation depth for ordinary concrete,fly ash concrete,slag concrete,fly ash and slag concrete in the standard carbonization environment( temperature is of( 20 ± 2) ℃,relative humidity is of( 70 ± 5) %,CO_2 concentration is of( 20 ± 3) %) was generated according to the practical carbonation prediction model. Then the influences of water-cement ratio( or water-binder ratio) and mineral admixtures on carbonation depth of concrete were analyzed. Meanwhile,a multi-factor computation model for concrete carbonation depth in terms of material parameters under the standard carbonization environment was developed by means of the nonlinear regression technique based on the least square method. Finally,the accuracy and applicability of the proposed model was validated by comparing with experimental data.
In order to accurately evaluate the carbonation resistance and durability of concrete,7822 sets of date of carbonation depth for ordinary concrete,fly ash concrete,slag concrete,fly ash and slag concrete in the standard carbonization environment( temperature is of( 20 ± 2) ℃,relative humidity is of( 70 ± 5) %,CO_2 concentration is of( 20 ± 3) %) was generated according to the practical carbonation prediction model. Then the influences of water-cement ratio( or water-binder ratio) and mineral admixtures on carbonation depth of concrete were analyzed. Meanwhile,a multi-factor computation model for concrete carbonation depth in terms of material parameters under the standard carbonization environment was developed by means of the nonlinear regression technique based on the least square method. Finally,the accuracy and applicability of the proposed model was validated by comparing with experimental data.
引文
[1]金伟良,赵羽习.混凝土结构耐久性[M].北京:科学出版社,2002.
[2]莫斯克文·B·M.混凝土和钢筋混凝土的腐蚀及其防护方法[M].北京:化学工业出版社,1988.
[3]孙伟.荷载与环境因素耦合作用下结构混凝土的耐久性与服役寿命[J].东南大学学报(自然科学版),2006(s2):7-14.
[4]阿列克谢耶夫.钢筋混凝土结构中钢筋腐蚀与保护[M].黄可信,等译.北京:中国建筑工业出版社,1983.
[5] Papadakis V G. Fundamental modeling and experimental investigation of concrete carbonation[J]. ACI Material Journal,1991,88(4):363-373.
[6] Papadakis V G. Effect of supplementary cementing materials on concrete resistance against carbonation and chloride ingress[J]. Cement&Concrete Research,2000,30(2):291-299.
[7]朱安民.混凝土碳化与钢筋混凝土耐久性[J].混凝土,1992(6):18-22.
[8]肖佳,勾成福.混凝土碳化研究综述[J].混凝土,2010(1):40-44.
[9]牛荻涛.混凝土结构耐久性与寿命预测[M].北京:科学出版社,2003.
[10]张誉,蒋利学.基于碳化机理的混凝土碳化深度实用数学模型[J].工业建筑,1998,28(1):16-19.
[11] Lindvall A. Duracrete-probabilistic performance based durability design of concrete structures[C]. 2nd Int. PhD. Symposium in Civil Engineering,1998.
[12] Ji Y,Wu M,Ding B,et al. The experimental investigation of width of semi-carbonation zone in carbonated concrete[J]. Construction&Building Materials,2014,65:67-75.
[13]余波,成荻,杨绿峰.混凝土结构的碳化环境作用量化与耐久性分析[J].土木工程学报,2015,9:51-59.
[14]冯庆革,杨义,杨绿峰,等.低用水大掺量粉煤灰高性能砼的耐久性研究[J].武汉理工大学学报,2009,4:148-150.
[15] Khunthongkeaw J,Tangtermsirikul S,Leelawat T. A study on carbonation depth prediction for fly ash concrete[J]. Construction&Building Materials,2006,20(9):744-753.
[16] Ho D W S,Lewis R K. Carbonation of concrete and its prediction[J]. Cement&Concrete Research,1987,17(3):489-504.
[17]李立,黄士元.混凝土碳化的预测[J].混凝土与水泥制品,1988(3):5-8.
[18]吴国坚,金骏,王传坤,等.粉煤灰掺量对混凝土氯离子扩散系数和碳化速率的影响[J].新型建筑材料,2011,38(8):8-11.
[19] Singh S B,Shaik H. Comparative study of accelerated carbonation of plain cement and fly-ash concrete[J]. Journal of Building Engineering,2017,10:26-31.
[20]沈旦申.粉煤灰混凝土[M].北京:中国铁道出版社,1989.
[21]朱红英,杜应吉,刘明珍,等.粉煤灰不同掺量对混凝土碳化的影响[J].中国农村水利水电,2012,4:150-152.
[22]周万良,方坤河,詹炳根.掺粉煤灰,矿粉混凝土抗碳化性能研究[J].混凝土与水泥制品,2012,1(2):14-19.
[23]宋华,牛荻涛,李春晖.矿物掺合料混凝土碳化性能试验研究[J].硅酸盐学报,2009,37(12):2066-2070.
[24]彭波,杨文,王军,等.大掺量矿物掺合料对预拌混凝土碳化的影响[J].混凝土,2009,5:108-110.
[25]张启锐.实用回归分析[M].北京:地质出版社,1988.
[26]徐飞.混凝土抗碳化性能的定量设计及其服役寿命研究[D].南宁:广西大学,2014.
[27]李春晖.复掺矿物掺合料混凝土碳化性能研究[D].西安:西安建筑科技大学,2009.
[28]杨军.混凝土的碳化性能与气渗性能研究[D].青岛:山东科技大学,2004.
[29]陈立亭.混凝土碳化模型及其参数研究[D].西安:西安建筑科技大学,2007.
[30] Shi H S,Xu B W,Zhou X C. Influence of mineral admixtures on compressive strength,gas permeability and carbonation of high performance concrete[J]. Construction&Building Materials,2009,23(5):1980-1985.
[31] Jiang L,Lin B,Cai Y. A model for predicting carbonation of high-volume fly ash concrete[J]. Cement&Concrete Research,2000,30(5):699-702.
[32] Wang J B,Niu D T,Ma R,et al. Influence the carbonation resistance and mechanical properties of shotcrete by accelerated carbonation test[J].Advanced Materials Research,2015,1065-1069:1985-1989.
[33]王培铭,朱艳芳,计亦奇,等.掺粉煤灰和矿渣粉大流动度混凝土的碳化性能[J].建筑材料学报,2001,4(4):305-310.
[34]杜晋军,金祖权,蒋金洋.粉煤灰混凝土的碳化研究[J].粉煤灰,2005,17(6):9-11.
[35]李春晖,牛荻涛,宋华.复掺矿物掺合料混凝土碳化试验研究[J].工程建设,2009,41(6):7-11.
[36]程云虹,闫俊,刘斌,等.粉煤灰混凝土碳化性能试验研究[J].公路,2007,12:160-162.
[37]宋少民,李红辉,邢峰.大掺量粉煤灰混凝土抵抗碳化和钢筋锈蚀研究[J].武汉理工大学学报,2008,30(8):38-42.
[38]贾耀东.大掺量矿物掺合料混凝土的碳化特性研究[D].北京:清华大学,2010.
[39]吴克刚,谢友均,丁巍巍,等.粉煤灰混凝土的抗碳化性能[J].腐蚀与防护,2008,29(10):596-598.
[40]朱艳芳,王培铭.大掺量粉煤灰混凝土的抗碳化性能研究[J].建筑材料学报,1999,2(4):319-323.
[41]阿茹罕.大掺量矿物掺和料混凝土的碳化评价方法及影响因素研究[D].北京:清华大学,2011.
[42]黄春霞.大掺量粉煤灰混凝土碳化深度预测模型试验研究[D].咸阳:西北农林科技大学,2011.
[43] Huang C H,Geng G L,Lu Y S,et al. Carbonation depth research of concrete with low-volume fly ash[J]. Applied Mechanics&Materials,2012,155-156:984-988.
[44]杨帆.低水泥用量混凝土力学及耐久性能试验研究[D].长沙:中南大学,2008.
[2]莫斯克文·B·M.混凝土和钢筋混凝土的腐蚀及其防护方法[M].北京:化学工业出版社,1988.
[3]孙伟.荷载与环境因素耦合作用下结构混凝土的耐久性与服役寿命[J].东南大学学报(自然科学版),2006(s2):7-14.
[4]阿列克谢耶夫.钢筋混凝土结构中钢筋腐蚀与保护[M].黄可信,等译.北京:中国建筑工业出版社,1983.
[5] Papadakis V G. Fundamental modeling and experimental investigation of concrete carbonation[J]. ACI Material Journal,1991,88(4):363-373.
[6] Papadakis V G. Effect of supplementary cementing materials on concrete resistance against carbonation and chloride ingress[J]. Cement&Concrete Research,2000,30(2):291-299.
[7]朱安民.混凝土碳化与钢筋混凝土耐久性[J].混凝土,1992(6):18-22.
[8]肖佳,勾成福.混凝土碳化研究综述[J].混凝土,2010(1):40-44.
[9]牛荻涛.混凝土结构耐久性与寿命预测[M].北京:科学出版社,2003.
[10]张誉,蒋利学.基于碳化机理的混凝土碳化深度实用数学模型[J].工业建筑,1998,28(1):16-19.
[11] Lindvall A. Duracrete-probabilistic performance based durability design of concrete structures[C]. 2nd Int. PhD. Symposium in Civil Engineering,1998.
[12] Ji Y,Wu M,Ding B,et al. The experimental investigation of width of semi-carbonation zone in carbonated concrete[J]. Construction&Building Materials,2014,65:67-75.
[13]余波,成荻,杨绿峰.混凝土结构的碳化环境作用量化与耐久性分析[J].土木工程学报,2015,9:51-59.
[14]冯庆革,杨义,杨绿峰,等.低用水大掺量粉煤灰高性能砼的耐久性研究[J].武汉理工大学学报,2009,4:148-150.
[15] Khunthongkeaw J,Tangtermsirikul S,Leelawat T. A study on carbonation depth prediction for fly ash concrete[J]. Construction&Building Materials,2006,20(9):744-753.
[16] Ho D W S,Lewis R K. Carbonation of concrete and its prediction[J]. Cement&Concrete Research,1987,17(3):489-504.
[17]李立,黄士元.混凝土碳化的预测[J].混凝土与水泥制品,1988(3):5-8.
[18]吴国坚,金骏,王传坤,等.粉煤灰掺量对混凝土氯离子扩散系数和碳化速率的影响[J].新型建筑材料,2011,38(8):8-11.
[19] Singh S B,Shaik H. Comparative study of accelerated carbonation of plain cement and fly-ash concrete[J]. Journal of Building Engineering,2017,10:26-31.
[20]沈旦申.粉煤灰混凝土[M].北京:中国铁道出版社,1989.
[21]朱红英,杜应吉,刘明珍,等.粉煤灰不同掺量对混凝土碳化的影响[J].中国农村水利水电,2012,4:150-152.
[22]周万良,方坤河,詹炳根.掺粉煤灰,矿粉混凝土抗碳化性能研究[J].混凝土与水泥制品,2012,1(2):14-19.
[23]宋华,牛荻涛,李春晖.矿物掺合料混凝土碳化性能试验研究[J].硅酸盐学报,2009,37(12):2066-2070.
[24]彭波,杨文,王军,等.大掺量矿物掺合料对预拌混凝土碳化的影响[J].混凝土,2009,5:108-110.
[25]张启锐.实用回归分析[M].北京:地质出版社,1988.
[26]徐飞.混凝土抗碳化性能的定量设计及其服役寿命研究[D].南宁:广西大学,2014.
[27]李春晖.复掺矿物掺合料混凝土碳化性能研究[D].西安:西安建筑科技大学,2009.
[28]杨军.混凝土的碳化性能与气渗性能研究[D].青岛:山东科技大学,2004.
[29]陈立亭.混凝土碳化模型及其参数研究[D].西安:西安建筑科技大学,2007.
[30] Shi H S,Xu B W,Zhou X C. Influence of mineral admixtures on compressive strength,gas permeability and carbonation of high performance concrete[J]. Construction&Building Materials,2009,23(5):1980-1985.
[31] Jiang L,Lin B,Cai Y. A model for predicting carbonation of high-volume fly ash concrete[J]. Cement&Concrete Research,2000,30(5):699-702.
[32] Wang J B,Niu D T,Ma R,et al. Influence the carbonation resistance and mechanical properties of shotcrete by accelerated carbonation test[J].Advanced Materials Research,2015,1065-1069:1985-1989.
[33]王培铭,朱艳芳,计亦奇,等.掺粉煤灰和矿渣粉大流动度混凝土的碳化性能[J].建筑材料学报,2001,4(4):305-310.
[34]杜晋军,金祖权,蒋金洋.粉煤灰混凝土的碳化研究[J].粉煤灰,2005,17(6):9-11.
[35]李春晖,牛荻涛,宋华.复掺矿物掺合料混凝土碳化试验研究[J].工程建设,2009,41(6):7-11.
[36]程云虹,闫俊,刘斌,等.粉煤灰混凝土碳化性能试验研究[J].公路,2007,12:160-162.
[37]宋少民,李红辉,邢峰.大掺量粉煤灰混凝土抵抗碳化和钢筋锈蚀研究[J].武汉理工大学学报,2008,30(8):38-42.
[38]贾耀东.大掺量矿物掺合料混凝土的碳化特性研究[D].北京:清华大学,2010.
[39]吴克刚,谢友均,丁巍巍,等.粉煤灰混凝土的抗碳化性能[J].腐蚀与防护,2008,29(10):596-598.
[40]朱艳芳,王培铭.大掺量粉煤灰混凝土的抗碳化性能研究[J].建筑材料学报,1999,2(4):319-323.
[41]阿茹罕.大掺量矿物掺和料混凝土的碳化评价方法及影响因素研究[D].北京:清华大学,2011.
[42]黄春霞.大掺量粉煤灰混凝土碳化深度预测模型试验研究[D].咸阳:西北农林科技大学,2011.
[43] Huang C H,Geng G L,Lu Y S,et al. Carbonation depth research of concrete with low-volume fly ash[J]. Applied Mechanics&Materials,2012,155-156:984-988.
[44]杨帆.低水泥用量混凝土力学及耐久性能试验研究[D].长沙:中南大学,2008.