|Table of Contents|

Mechanical property of early-strength water-containing unsaturated polyurethane concrete(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2016年02期
Page:
10-17
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Mechanical property of early-strength water-containing unsaturated polyurethane concrete
Author(s):
JIANG Kai1;  SU Qian1;  FENG Xu2
1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. Administrative Department of Urban Roads and Bridges of Chengdu Municipality, Chengdu 610017, Sichuan, China
Keywords:
railway subgrade;  water-containing unsaturated polyurethane concrete;  proportioning test;  strength test;  water-mixed test;  mechanical property;  effect factor
PACS:
U213.1
DOI:
-
Abstract:
To solve the problem of poor workability, fast curing and molding difficulty of common polyurethane concrete, a new water-containing unsaturated polyurethane concrete was proposed according to the requirement of high standards for aggregate in common polymer concrete. The mechanical properties of water-containing unsaturated polyurethane concrete were investigated by ratio test, strength test, water-mixed test, immersion test and field sampling test, and the effects of material properties, material ratio, temperature and moisture content on the mechanical properties were analyzed. Analysis result shows when the added amount of water is 15%-20% of unsaturated polyurethane at 10 ℃-20 ℃, the added amount of water is 20%-30% of unsaturated polyurethane above 20 ℃, the compressive strength of 1 d for the water-containing unsaturated polyurethane concrete is 22.70 MPa in field engineering application and immersion test, and the phenomena of softening and disintegration are not found after long-term immersion. Obviously, the water-containing unsaturated polyurethane concrete has good stability, workability and formability that meet the engineering needs in the construction. At 15 ℃, the recommended mass ratio of cement, sand, stone, ZK3, water, unsaturated polyurethane, initiator, and accelerant is 1.000:5.700:7.300:1.300:0.080:2.000:0.050:0.025. 8 tabs, 8 figs, 25 refs.

References:

[1] 韦灼彬,王铁成,高 屹.早强快硬聚氨酯混凝土的试验研究[J].混凝土,2005(9):58-64.WEI Zhuo-bin, WANG Tie-cheng, GAO Yi. Experiment on a type of polyurethane concrete possessing early strength and speedily solidification[J]. Concrete, 2005(9): 58-64.(in Chinese)
[2] MARZOCCHI A, ROBERTN G, BOLEN G E. Road pavement and repair: USA, US 4265563[P]. 1981-05-05.
[3] CHATTOPADHYAY D K, RAJU K V S N. Structural engineering of polyurethane coatings for high performance applications[J]. Progress in Polymer Science, 2007, 32(3): 352-418.
[4] OHAMA Y. Recent progress in concrete-polymer composites[J]. Advanced Cement Based Materials, 1997, 5(2): 31-40.
[5] SARVA S S, DESCHANEL S, BOYCE M C, et al. Stress-strain behavior of a polyurea and a polyurethane from low to high strain rates[J]. Polymer, 2007, 48(8): 2208-2213.
[6] 彭全敏.聚氨酯材料快速修补机场跑道的试验研究[D].天津:天津大学, 2005.PENG Quan-min. Experiment research on rapid pavement repair of airfield runway by employing polyurethane materials[D]. Tianjin: Tianjin University, 2005.(in Chinese)
[7] 高 屹,韦灼彬,王铁成.机场道面抢修用聚氨酯稳定集料的试验研究[J].海军工程大学学报,2007,19(3):104-107.GAO Yi, WEI Zhuo-bin, WANG Tie-cheng. Experimental study on the polyurethane materials used for rapid repair of airfield pavement[J]. Journal of Naval University of Engineering, 2007, 19(3): 104-107.(in Chinese)
[8] 梁乃兴,曹源文,姚红云.聚合物改性水泥混凝土路用性能研究[J].公路交通科技,2005,22(3):21-23.LIANG Nai-xing, CAO Yuan-wen, YAO Hong-yun. Research on performance of cement concrete modified with styrene butadiene latex[J]. Journal of Highway and Transportation Research and Development, 2005, 22(3): 21-23.(in Chinese)
[9] 申爱琴.水泥混凝土路面裂缝修补材料研究[D].西安:长安大学,2005.SHEN Ai-qin. Study on the crack mending materials of cement concrete pavement[D]. Xi’an: Chang’an University, 2005.(in Chinese)
[10] 罗立峰.钢纤维增强聚合物混凝土桥面铺装层修筑技术的研究[D].广州: 华南理工大学, 2002.LUO Li-feng. Construction technology of SFRPC bridge deck pavement[D]. Guangzhou: South China University of Technology, 2002.(in Chinese)
[11] PATEL P S D, SHEPHERD D E T, HUKINS D W L. Compressive properties of commercially available polyurethane foams as mechanical models for osteoporotic human cancellous[J]. BMC Musculoskeletal Disorders, 2008, 9(1): 137-141.
[12] MOLINDA G. Reinforcing coal mine roof with polyurethane injection: 4 case studies[J]. Geotechnical and Geological Engineering, 2008, 26(5): 553-566.
[13] LEE S H, WANG S, PHARR G M, et al. Evaluation of interphase properties in a cellulose fiber-reinforced polypropylene composite by nanoindentation and finite element analysis[J]. Composites Part A: Applied Science and Manufacturing, 2007, 38(6): 1517-1524.
[14] HOUSHYAR S, SHANK R A, HODZIC A. The effect of fiber concentration on mechanical and thermal properties of fiber-reinforced polypropylene composites[J]. Journal of Applied Polymer Science, 2005, 96(6): 2260-2272.
[15] DAVIDOVITS J. Geopolymers: inorganic polymeric new materials[J]. Journal of Thermal Analysis, 1991, 37(8):1633-1656.
[16] DAVIDOVITS J. Recent progresses in concretes for nuclear waste and uranium waste containment[J]. Concrete Intimation, 1994, 16(12): 53-58.
[17] 张 琳.水泥混凝土路面快速修补材料的研究与开发[D].西安:长安大学,2011.ZHANG Lin. Study and develop on rapid repair materials of cement concrete pavements[D]. Xi’an: Chang’an University, 2011.(in Chinese)
[18] STRAND D, MACDONALD C N, RAMAKRISHNAN V, et al. Construction applications of Polyolefin fiber reinforced concrete[C]∥ASCE. Proceedings of ASCE 4th Materials Engineering Conference. Reston: ASCE, 1996: 103-112.
[19] 彭小芹,杨 涛,王开宇,等.地聚合物混凝土及其在水泥混凝土路面快速修补中的应用[J].西南交通大学学报,2011,46(2):205-210.PENG Xiao-qin,YANG Tao,WANG Kai-yu,et al. Preparation of geopolymeric concrete and its application to rapid repair of cement concrete pavement[J]. Journal of Southwest Jiaotong University, 2011, 46(2): 205-210.(in Chinese)
[20] 杨若冲,谈至明,黄晓明,等.掺聚合物的橡胶混凝土路用性能研究[J].中国公路学报,2010,23(4):15-19.YANG Ruo-chong, TAN Zhi-ming, HUANG Xiao-ming, et al. Research on performance of rubberized concrete incorporated with polymer [J]. China Journal of Highway and Transport, 2010, 23(4): 15-19.(in Chinese)
[21] FOWLER D W. Polyenes in concrete: a version for the 21st century[J]. Cement and Concert Composites, 1999, 21(5/6): 449-452.
[22] DOWNING T D, KUMAR R, CROSS W M, et al. Determining the interphase thickness and properties in polymer matrix composites using phase imaging atomic force microscopy and nanoindentation[J]. Journal of Adhesion Science and Technology, 2000, 14(14): 1801-1812.
[23] JANOTKA I, KRAJCI L, RAY A, et al. The hydration phase and pore structure formation in the blends of sulfoaluminate-belite cement with Portland cement[J]. Cement and Concrete Research, 2003, 33(4): 489-497.
[24] AL-NEGHEIMISH A I, ALHOZAIMY A M. Impact of extremely hot weather and mixing method on changes in properties of ready mixed concrete during delivery[J]. ACI Materials Journal, 2008, 105(5): 438-444.
[25] 高 屹,韦灼彬.聚氨酯混合材料发泡技术现场试验研究[J].工程力学,2009,26(增1):198-202.GAO Yi, WEI Zhuo-bin. Experimental study on frothing techniques with mixed polyurethane materials[J]. Engineering Mechanics, 2009, 26(S1): 198-202.(in Chinese)

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Last Update: 2016-04-20