|
|
- 2016
含涤废弃织物增强水泥基透水砖的制备及表征
|
Abstract:
采用涤棉混纺(P/C)和涤纶(PE)废弃织物增强水泥基透水混凝土砖,分析织物含量和织物尺寸等因素对复合透水砖(CPB)抗压性能、透水性和保水性的影响。结果表明:随着织物掺加体积分数的增加,CPB的抗压强度、压缩韧性指数和所消耗能量先增大后减小,透水系数和保水系数增加;随着织物尺寸增大,CPB的抗压强度、透水系数和保水系数逐渐减小,压缩韧性指数增加,耗能变化幅度不大;在织物和纤维掺加量较小且掺加质量相同的条件下,与废弃织物CPB相比,再生纤维CPB的抗压强度较小,而压缩韧性指数、耗能和透水系数较大;当织物掺加体积分数≤2%时,涤棉复合透水砖(PC-CPB)的抗压强度优于涤纶复合透水砖(P-CPB),透水系数、保水系数和P-CPB接近,当织物掺加体积分数>2%时则相反,而PC-CPB的压缩韧性指数和耗能始终优于P-CPB;织物掺加体积分数为2%的3 mm×3 mm P/C织物所制备的CPB抗压强度为28.20 MPa,耗能为1097.55 N·m,透水系数为0.267 mm/s,保水系数为43.40 g/cm2,与普通透水砖相比,分别提高了21.8%、55.8%、115.3%和33.3%。 The waste polyester/cotton(P/C) blended fabric and waste polyester(PE) fabric were used to reinforce the cement based permeable concrete brick. The effects of fabric content and size on the compressive property, permeability and water retention property of composite permeable brick(CPB) were investigated. The results show that with increasing of fabric additive volume fraction, the compressive strength, compression toughness index and absorbed energy of CPB first increase and then decrease, and the permeability coefficient and water retention coefficient increase; with increasing of fabric size, the compressive strength, permeability coefficient and water retention coefficient of CPB decrease, the compression toughness index increases and absorbed energy has little change; when the added amount of fabric and fiber with equal mass are smaller, compared with CPB reinforced with waste fabric, the compressive strength of CPB reinforced with recycled fiber is lower but the compression toughness index, absorbed energy and permeability coefficient are bigger; when fabric additive volume fraction ≤2%, the compressive strength of CPB reinforced with P/C fabric(PC-CPB) is better than that of CPB reinforced with polyester fabric(P-CPB), the permeability coefficient and water retention coefficient of PC-CPB are close to those of P-CPB, but when fabric additive volume fraction >2% the results are contrary, and the compression toughness index, absorbed energy of PC-CPB are always better than those of P-CPB; CPB reinforced with 2% fabric additive volume fraction 3 mm×3 mm P/C fabric has the compressive strength 28.20 MPa, absorbed energy 1097.55 N·m, permeability coefficient 0.267 mm/s, water retention coefficient 43.40 g/cm2, which are raised by 21.8%, 55.8%, 115.3% and 33.3% respectively compared with the ordinary permeable brick. 天津市科技支撑计划(15zczdsf00880)
| [1] | 刘幼红, 尹坚, 张江锋, 等. 透水砖:JC/T 945-2005[S]. 北京:中国建材工业出版社, 2005. LIU Y H, YIN J, ZHANG J F, et al. Water permeable brick:JC/T 945-2005[S]. Beijing:China Building Materials Press, 2005(in Chinese). |
| [2] | 王兆忠, 周迎新, 陈凤山.混凝土断裂能的研究[J].华南港工, 2005(3):48-52. WANG Z Z, ZHOU Y X, CHEN F S. A study on concrete fracture[J]. South China Harbour Engineering, 2005(3):48-52(in Chinese). |
| [3] | 张巨松.混凝土学[M].哈尔滨:哈尔滨工业大学出版社, 2011:47-106. ZHANG J S. Concrete science[M]. Harbin:Harbin Institute of Technology Press, 2011:47-106(in Chinese). |
| [4] | 邓宗才, 孙成栋, 黄博升. 碳纤维混凝土的压缩韧度指数[J].混凝土与水泥制品, 2000(4):37-38. DENG Z C, SUN C D, HUANG B S. Compression toughness index of carbon fiber reinforced concrete[J]. China Concrete and Cement Products, 2000(4):37-38(in Chinese). |
| [5] | 王波, 李成.透水性铺装与城市生态及物理环境[J].工业建筑, 2002, 32(12):29-31. WANG B, LI C. Penetrative pavement and urban ecological and physical environment[J]. Industrial Construction, 2002, 32(12):29-31(in Chinese). |
| [6] | 陈庆锋.生态混凝土在城市面源污染控制中的应用初探[J].上海环境科学, 2005, 24(5):214-218. CHEN Q F. An application of eco-concrete for urban non-point source pollution control[J]. Shanghai Environmental Sciences, 2005, 24(5):214-218(in Chinese). |
| [7] | 王娇娜.透水性聚丙烯纤维混凝土实验研究[D].石家庄:河北工程大学, 2008. WANG J N. Experimental research of hydraulic conductivity concrete with polypropylene fiber[D]. Shijiazhuang:Hebei University of Engineering, 2008(in Chinese). |
| [8] | MOUSSA G K. Effect of addition of short fibers of poly-acrylic and polyamide to asphalt mixtures[J]. Alexandria Engineering Journal, 2003, 42(3):329-336. |
| [9] | SCHMIDT H, CIESLAK M. Concrete with carpet recyclates:Suitability assessment by surface energy evaluation[J]. Waste Management, 2008, 28(7):1182-1187. |
| [10] | LEE S J, RUST J P, HAMOUDA H, et al. Fatigue cracking resistance of fiber-reinforced asphalt concrete[J]. Textile Research Journal, 2005, 75(2):123-128. |
| [11] | 卫明山, 李利莎, 郑全平, 等.钢纤维混凝土韧性指数评价方法对比研究[J].建筑结构, 2007, 37(12):90-92. WEI M S, LI L S, ZHENG Q P, et al. Comparative study of evaluate method for toughness factor of steel fiber reinforced concrete(SFRC)[J]. Building Structure, 2007, 37(12):90-92(in Chinese). |
| [12] | 王波, 霍亮, 高建明.透水性地砖蒸发试验研究[J].四川建筑科学研究, 2004, 30(3):102-104. WANG B, HUO L, GAO J M. Evaporating test researches of porous brick[J]. Sichuan Building Science, 2004, 30(3):102-104(in Chinese). |
| [13] | 陈志山.生态混凝土净水机理及其应用[J].科学技术与工程, 2003, 3(4):371-373. CHEN Z S. Mechanism and application of eco-concrete using for sewage purification[J]. Science Technology and Engineering, 2003, 3(4):371-373(in Chinese). |
| [14] | 王娇娜.透水性聚丙烯纤维混凝土的初步探讨[J].水科学与工程技术, 2008(2):32-34. WANG J N. Preliminary study of hydraulic conductivity concrete with polypropylene fiber[J].Water Sciences and Engineering Technology, 2008(2):32-34(in Chinese). |
| [15] | 姜德民, 程海丽, 高振林.透水性混凝土路面砖的研制[J].新型建筑材料, 2003(3):18-20. JIANG D M, CHENG H L, GAO Z L. Development of water-permeable concrete paving brick[J]. New Building Materials, 2003(3):18-20(in Chinese). |
| [16] | 李伟.生态混凝土透水砖的研发及应用[J].砖瓦, 2007(7):14-17. LI W. Study and utilization of ecological water-permeable concrete paving brick[J]. Brick & Tile, 2007(7):14-17(in Chinese). |
| [17] | 王建坤, 高晓平, 刘玉梅.纺织废料再生纤维增强混凝土力学性能的研究[J].天津工业大学学报, 2005, 24(4):12-15. WANG J K, GAO X P, LIU Y M. Research on mechanical properties of recycled waste fiber reinforced concrete[J]. Journal of Tianjin Polytechnic University, 2005, 24(4):12-15(in Chinese). |
| [18] | 王彩波, 宋建夏, 金宝宏, 等.涤纶纤维在混凝土碱环境下的性能研究[J].四川建材, 2009, 35(4):11-12. WANG C B, SONG J X, JIN B H, et al. Study of the polyester fiber's performance under concretes alkali environment[J]. Sichuan Building Materials, 2009, 35(4):11-12(in Chinese). |
| [19] | 沈荣熹, 王璋水, 崔玉忠.纤维增强水泥与纤维增强混凝土[M].北京:化学工业出版社, 2006:32-63. SHEN R X, WANG Z S, CUI Y Z. Fiber reinforced cement and fiber reinforced concrete[M]. Beijing:Chemical Industry Press, 2006:32-63(in Chinese). |
