|Table of Contents|

Mechanical properties of fiber rubber mortar and axial compression test of masonry(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2023年02期
Page:
19-25
Research Field:
建筑材料
Publishing date:

Info

Title:
Mechanical properties of fiber rubber mortar and axial compression test of masonry
Author(s):
YIN Yayun1;  LIU Chuanqi1;  LI Shujin1;  MAO Ling1;  WANG Zhenyang2
(1.School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China; 2. Wuhan Metro Group Co., Ltd, Wuhan 430030, Hubei, China)
Keywords:
rubber mortar;  mechanical property;  axial compression;  fiber;  masonry
PACS:
TU528.58
DOI:
10.19815/j.jace.2021.10072
Abstract:
In order to improve the mechanical properties and applicability of rubber mortar, the rubber mortar was modified by single-doped polyvinyl alcohol(PVA)fiber or steel fiber, and PVA-steel fiber, then the influences on ultrasonic propagation speed, flexural strength, and compressive strength were discussed. Ordinary cement mortar, 20% rubber mortar and PVA-steel fiber rubber mortar were combined with environmentally friendly compressed bricks to make masonry, and the axial compressive strength and elastic modulus were studied. The results show that adding PVA fiber or PVA-steel fiber reduces the propagation speed of ultrasonic waves in rubber mortar. Adding PVA fiber or steel fiber improves the flexural strength of rubber mortar. A certain amount of PVA fiber and steel fiber can effectively improve the compressive strength of rubber mortar. The compressive strength of 20% rubber mortar is 46% lower than that of ordinary cement mortar, and the failure load of masonry is reduced by 12.8%. The compressive strength of PVA-steel fiber rubber mortar is 14.9% higher than that of 20% rubber mortar, and the cracking load and failure load of the corresponding masonry are increased by 63.4% and 4.5% respectively. Adding a proper amount of PVA fiber and steel fiber can improve the strength of rubber mortar, which is obviously lower than ordinary cement mortar. Applying compounded PVA-steel fiber rubber mortar to masonry engineering can improve the sound insulation of the structure, delay the cracking of specimen, and improve the compressive strength of the rubber mortar masonry.

References:

[1] HANNAWI K,PRINCE W,BERNARD S K.Strain capacity and cracking resistance improvement in mortars by adding plastic particles[J].Journal of Materials in Civil Engineering,2013,25(11):1602-1610.
[2]LI Y,DONG J X,ZHANG S,et al.Analysis of crack resistance for hybrid fiber mortar[J].Advanced Materials Research,2013,779-780:222-225.
[3]PEDRO D,DE BRITO J,VEIGA R.Mortars made with fine granulate from shredded tires[J].Journal of Materials in Civil Engineering,2013,25(4):519-529.
[4]TURKI M,BRETAGNE E,ROUIS M J,et al.Microstructure,physical and mechanical properties of mortar-rubber aggregates mixtures[J].Construction and Building Materials,2009,23(7):2715-2722.
[5]NA O,XI Y P.Mechanical and durability properties of insulation mortar with rubber powder from waste tires[J].Journal of Material Cycles and Waste Management,2017,19:763-773.
[6]TURATSINZE A,BONNET S,GRANJU J L.Mechanical characterisation of cement-based mortar incorporating rubber aggregates from recycled worn tyres[J].Building and Environment,2005,40(2):221-226.
[7]谢建和,李自坚,孙明炜.硅粉对纤维橡胶再生混凝土抗压性能影响试验[J].建筑科学与工程学报,2016,33(3):72-77.
XIE Jianhe,LI Zijian,SUN Mingwei.Experiment about influence of silica fume on compressive performance of fiber reinforced rubber recycled concrete[J].Journal of Architecture and Civil Engineering,2016,33(3):72-77.
[8]刘 喜,吴 涛,杨 雪,等.纤维增韧高强轻骨料混凝土力学性能与微观结构[J].建筑材料学报,2019,22(5):700-706,713.
LIU Xi,WU Tao,YANG Xue,et al.Mechanical properties and microstructure of fiber reinforced high-strength lightweight aggregate concrete[J].Journal of Building Materials,2019,22(5):700-706,713.
[9]WANG J Q,DAI Q L,SI R Z,et al.Investigation of properties and performances of polyvinyl alcohol(PVA)fiber-reinforced rubber concrete[J].Construction and Building Materials,2018,193:631-642.
[10]何 亮,黄 勇,冯 畅,等.橡胶混凝土性能及胶粉表面改性研究进展[J].硅酸盐通报,2018,37(8):2483-2489,2496.
HE Liang,HUANG Yong,FENG Chang,et al.Research progress on properties of rubberized concrete and the surface modification of crumb rubber[J].Bulletin of the Chinese Ceramic Society,2018,37(8):2483-2489,2496.
[11]MOHAMMADI I,KHABBAZ H,VESSALAS K.Enhancing mechanical performance of rubberised concrete pavements with sodium hydroxide treatment[J].Materials and Structures,2016,49:813-827.
[12]史 巍,张 雄,陆沈磊.橡胶粉水泥砂浆隔声功能研究[J].建筑材料学报,2005,8(5):553-557.
SHI Wei,ZHANG Xiong,LU Shenlei.Sound insulation function of cement mortar modified with crumb rubber[J].Journal of Building Materials,2005,8(5):553-557.
[13]CORREDOR-BEDOYA A C,ZOPPI R A,SERPA A L.Composites of scrap tire rubber particles and adhesive mortar - noise insulation potential[J].Cement and Concrete Composites,2017,82:45-66.
[14]ELDIN N N,SENOUCI A B.Observations on rubberized concrete behavior[J].Cement,Concrete and Aggregates,1993,15(3):74-84.
[15]FAN J,LI G Y,DENG S J,et al.Mechanical properties and microstructure of polyvinyl alcohol(PVA)modified cement mortar[J].Applied Sciences,2019,9(11):2178.
[16]HAQUE M A,CHEN B,AHMAD M R,et al.Evaluating the physical and strength properties of fibre reinforced magnesium phosphate cement mortar considering mass loss[J].Construction and Building Materials,2019,217:427-440.
[17]石建光,郑雪锋,林树枝,等.灰缝厚度及水泥砂浆抹面对历史建筑砌体结构性能的影响[J].建筑科学与工程学报,2020,37(1):67-74.
SHI Jianguang,ZHENG Xuefeng,LIN Shuzhi,et al.Influence of mortar thickness and cement mortar surface strengthening on behavior of masonry structure in historical buildings[J].Journal of Architecture and Civil Engineering,2020,37(1):67-74.
[18]王凤池,丁军胜,刘凤起,等.橡胶混凝土砖砌体力学性能试验[J].沈阳建筑大学学报(自然科学版),2013,29(1):50-55.
WANG Fengchi,DING Junsheng,LIU Fengqi,et al.The experiment of basic mechanical properties of CRB masonry[J].Journal of Shenyang Jianzhu University(Natural Science),2013,29(1):50-55.

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Last Update: 2023-03-20