渗透结晶型防水剂对水泥基材料自修复性能的影响及其机理研究
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摘要
为了明确水泥基渗透结晶型防水剂对水泥基材料自修复性能的影响,研究了防水剂掺量为0、1%、2%、3%时砂浆试块裂缝的自愈合过程,并利用XRD、SEM、FT-IR等手段分析了防水剂中的活性物质以及自修复产物的主要成分、晶相和微观形貌,提出了其对水泥基材料自修复作用机理,对其在工程中的应用以及国内自主研发该类产品具有一定的借鉴作用。
In order to clarify the effect of cementitious capillary crystalline waterproofing admixture on the self-healing performance of cementitious materials, the self-healing process of cracks in mortar samples was studied when the amount of waterproofing admixture was 0, 1%, 2% and 3%. Furthermore, XRD, SEM, FT-IR and other characterization methods were used to analyze the main components of the activated chemical additive in the cementitious capillary crystalline waterproofing admixture, crystal phases and micro-morphologies of self-healing products were aslo investigated. Finally,the self-healing mechanism of the materials was proposed, which had a certain reference to the applications and domestic research of such products.
In order to clarify the effect of cementitious capillary crystalline waterproofing admixture on the self-healing performance of cementitious materials, the self-healing process of cracks in mortar samples was studied when the amount of waterproofing admixture was 0, 1%, 2% and 3%. Furthermore, XRD, SEM, FT-IR and other characterization methods were used to analyze the main components of the activated chemical additive in the cementitious capillary crystalline waterproofing admixture, crystal phases and micro-morphologies of self-healing products were aslo investigated. Finally,the self-healing mechanism of the materials was proposed, which had a certain reference to the applications and domestic research of such products.
引文
[1]王亚奇,丁文胜,张金飞,等.MICP修补液与传统混凝土裂缝修补材料的对比研究[J].混凝土与水泥制品,2018(5):10-14.
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[5]Wu M,Johannesson B,Geiker M.A review:Self-healing in cementitious materials and engineered cementitious composite as a self-healing material[J].Construction&Building Materials,2012,28(1):571-583.
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[7]Jiang Z,Li W,Yuan Z.Influence of mineral additives and environmental conditions on the self-healing capabilities of cementitious materials[J].Cement&Concrete Composites,2015,57(2-3):116-127.
[8]Li W,Dong B,Yang Z,et al.Recent Advances in Intrinsic Self-Healing Cementitious Materials[J].Advanced Materials,2018:1-9.
[9]Qureshi T,Al-Tabbaa A.Influence of Expansive minerals on the Self-healing of Cement Paste and Mortar Systems[C].International Conference of Self-Healing Materials.2015.
[10]Qureshi T S,Kanellopoulos A,Al-Tabbaa A.Encapsulation of expansive powder minerals within a concentric glass capsule system for self-healing concrete[J].Construction&Building Materials,2016,121:629-643.
[11]沈川越,黄佳健,汪群,等.渗透型防水材料对混凝土耐久性的影响研究[J].施工技术,2016,45(9):80-83.
[12]丁向群,邢进,刘东涛.内掺渗透结晶防水材料混凝土的渗透性能研究[J].混凝土,2016(9):120-123.
[13]罗曼,关平,刘文汇.利用红外光谱鉴别饱和脂肪酸及其盐[J].光谱学与光谱分析,2007,27(2):250-253.
[2]Guo-Zhong L U,Zhao W X,Zhou L J,et al.The Analysis on Mechanism and Application of Cementitious Capillary Crystalline Waterproofing Coating[C].International Conference on Mechanics and Civil Engineering,2014:156-161.
[3]刘腾飞,胡昱,葛啸.XYPEX浓缩剂对混凝土抗冻性的影响[J].混凝土,2011(2):60-62.
[4]代德伟,路国忠,文天阳.水泥基渗透结晶型防水涂料的制备技术研究[J].混凝土与水泥制品,2013(10):15-18.
[5]Wu M,Johannesson B,Geiker M.A review:Self-healing in cementitious materials and engineered cementitious composite as a self-healing material[J].Construction&Building Materials,2012,28(1):571-583.
[6]Huang H,Ye G,Qian C,et al.Self-healing in cementitious materials:Materials,methods and service conditions[J].Materials&Design,2016,92:499-511.
[7]Jiang Z,Li W,Yuan Z.Influence of mineral additives and environmental conditions on the self-healing capabilities of cementitious materials[J].Cement&Concrete Composites,2015,57(2-3):116-127.
[8]Li W,Dong B,Yang Z,et al.Recent Advances in Intrinsic Self-Healing Cementitious Materials[J].Advanced Materials,2018:1-9.
[9]Qureshi T,Al-Tabbaa A.Influence of Expansive minerals on the Self-healing of Cement Paste and Mortar Systems[C].International Conference of Self-Healing Materials.2015.
[10]Qureshi T S,Kanellopoulos A,Al-Tabbaa A.Encapsulation of expansive powder minerals within a concentric glass capsule system for self-healing concrete[J].Construction&Building Materials,2016,121:629-643.
[11]沈川越,黄佳健,汪群,等.渗透型防水材料对混凝土耐久性的影响研究[J].施工技术,2016,45(9):80-83.
[12]丁向群,邢进,刘东涛.内掺渗透结晶防水材料混凝土的渗透性能研究[J].混凝土,2016(9):120-123.
[13]罗曼,关平,刘文汇.利用红外光谱鉴别饱和脂肪酸及其盐[J].光谱学与光谱分析,2007,27(2):250-253.