|Table of Contents|

Constitutive Relationship and Mechanical Properties of Manufactured Sand Concrete with Different Rocks(PDF)

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

Issue:
2021年01期
Page:
99-106
Research Field:
Publishing date:

Info

Title:
Constitutive Relationship and Mechanical Properties of Manufactured Sand Concrete with Different Rocks
Author(s):
XIE Kai-zhong1; 2;  LIU Zhen-wei1;  GE Bing-zhou1;  XIN Ying1;  ZHU Mao-jin1
(1. College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, Guangxi, China; 2. Key Laboratory of Engineering Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, Guangxi, China) Analysis of Cracking of Concrete Floor Slabs in Steel-tube-bundle Structure
Keywords:
manufactured sand concrete;  river sand concrete;  uniaxial compression;  fineness modulus;  stone powder content;  elastic modulus
PACS:
TU528
DOI:
10.19815/j.jace.2020.05013
Abstract:
In order to study the mechanical properties of manufactured sand concrete(MSC)under uniaxial stress, taking three kinds of manufactured sand including limestone sand, pebble sand, basalt sand in Guangxi as fine aggregates, taking the concrete design strength grade as variable parameter, 24 standard prism concrete specimens(150 mm×150 mm×300mm)and 24 cube concrete specimens(150 mm×150 mm× 150 mm)were cast. Comparing with the river sand concrete(RSC), the uniaxial compression tests were carried. The compressive strength and stress-strain relation curves were obtained, and the uniaxial compression constitutive equations suitable for MSC were obtained. The formula of elastic modulus of MSC was presented by the test data. The results show that the failure modes of MSC with different lithologies are almost the same. The stress-strain curve of MSC is similar with that of RSC, in the rising stage of the curve, MSC and RSC have basically coincident curve, however, in descending stage, the curve of MSC is much steeper than that of RSC. The stress-strain curve of manufactured sand concrete fitted by Sargin model is in good agreement with the experimental curve. The mechanical properties of manufactured sand concrete are related to the physical properties of fine aggregate with different lithologies. With the increase of fineness modulus or stone powder content, the peak stress and peak strain of manufactured sand concrete show a trend of first increasing and then decreasing. The peak stress and peak strain of manufactured sand concrete show a trend of first increasing and then decreasing. The conversion coefficient of MSC is proposed to be 0.77 when the water cement ratio is 0.3-0.4. The elastic modulus of pebble sand concrete is higher than that of basalt sand concrete and limestone sand concrete.

References:

[1] SHEN W G,LIU Y,WANG Z W,et al.Influence of Manufactured Sand's Characteristics on Its Concrete Performance[J].Construction and Building Materials,2018,172:574-583.
[2]MUNDRA S,SINDHI P R,CHANDWANI V,et al.Crushed Rock Sand — An Economical and Ecological Alternative to Natural Sand to Optimize Concrete Mix[J].Perspectives in Science,2016,8:345-347.
[3]YANG R,YU R,SHUI Z H,et al.The Physical and Chemical Impact of Manufactured Sand as a Partial Replacement Material in Ultra-high Performance Concrete(UHPC)[J].Cement and Concrete Composites,2019,99:203-213.
[4]芮 捷,刘唐志,王 兵,等.机制砂级配对高强混凝土性能的影响研究[J].中外公路,2014,34(1):298-300.
RUI Jie,LIU Tang-zhi,WANG Bing,et al.Study on the Influence of Gradation of Manufactured Sand on the Performance of High Strength Concrete[J].Journal of China & Foreign Highway,2014,34(1):298-300.
[5]李 晟,董 城,郑祖恩,等.机制砂在湘西山区公路工程中的应用[J].公路工程,2016,41(3):132-134,146.
LI Sheng,DONG Cheng,ZHENG Zu-en,et al.Application of Manufactured Sand in Highway Engineering in Xiangxi Mountainous Area[J].Highway Engineering,2016,41(3):132-134,146.
[6]XIE K Z,BAI M Y,QING Z G,et al.Study on Durability of Manufactured Sand Based on Stone Powder Content[J].Science of Advanced Materials,2018,10(11):1608-1614.
[7]肖建庄,杜江涛.不同再生粗集料混凝土单轴受压应力-应变全曲线[J].建筑材料学报,2008,11(1):111-115.
XIAO Jian-zhuang,DU Jiang-tao.Complete Stress-strain Curve of Concrete with Different Recycled Coarse Aggregates Under Uniaxial Compression[J].Journal of Building Materials,2008,11(1):111-115.
[8]陈宗平,徐金俊,郑华海,等.再生混凝土基本力学性能试验及应力-应变本构关系[J].建筑材料学报,2013,16(1):24-32.
CHEN Zong-ping,XU Jin-jun,ZHENG Hua-hai,et al.Basic Mechanical Properties Test and Stress-strain Constitutive Relations of Recycled Coarse Aggregate Concrete[J].Journal of Building Materials,2013,16(1):24-32.
[9]赵秋红,王 菲,朱 涵.结构用橡胶集料混凝土受压全曲线试验及其本构模型[J].复合材料学报,2018,35(8):2222-2234.
ZHAO Qiu-hong,WANG Fei,ZHU Han.Compression Test on Curves and Constitutive Model of Crumb Rubber Concrete for Structural Purposes[J].Acta Materiae Compositae Sinica,2018,35(8):2222-2234.
[10]BOMPA D V,ELGHAZOULI A Y,XU B,et al.Experimental Assessment and Constitutive Modelling of Rubberised Concrete Materials[J].Construction and Building Materials,2017,137:246-260.
[11]叶中豹,李永池,赵 凯,等.一种新形式的钢纤维混凝土冲击动态本构关系及材料参数的确定[J].爆炸与冲击,2018,38(2):266-270.
YE Zhong-bao,LI Yong-chi,ZHAO Kai,et al.A New Impact Dynamic Constitutive Relation of Steel Fiber Reinforced Concrete and the Determination of Material Parameters[J].Explosion and Shock Waves,2018,38(2):266-270.
[12]陈正发,秦彦龙,刘桂凤,等.高温后机制砂混凝土的本构关系试验研究[J].混凝土,2013(12):72-74,86.
CHEN Zheng-fa,QIN Yan-long,LIU Gui-feng,et al.Experimental Study on Constitutive Relation of Concrete with Manufactured-sand After High Temperatures[J].Concrete,2013(12):72-74,86.
[13]梁冬瑶.含石粉机制砂再生混凝土受压性能研究及水化机理分析[D].南宁:广西大学,2017.
LIANG Dong-yao.Compressive Performance and Hydration Mechanism of Concrete Made with Recycled Coarse Aggregate and Manufactured Sand Incorporating Stone Power[D].Nanning:Guangxi University,2017.
[14]BONAVETTI V L,IRASSAR E F.The Effect of Stone Dust Content in Sand[J].Cement and Concrete Research,1994,24(3):580-590.
[15]SABIH G,TAREFDER R A,JAMIL S M.Optimization of Gradation and Fineness Modulus of Naturally Fine Sands for Improved Performance as Fine Aggregate in Concrete[J].Procedia Engineering,2016,145:66-73.
[16]LI H J,HUANG F L,CHENG G Z,et al.Effect of Granite Dust on Mechanical and Some Durability Properties of Manufactured Sand Concrete[J].Construction and Building Materials,2016,109:41-46.
[17]吴永根,李文哲,韩 照,等.砂细度模数对道面混凝土性能的影响[J].空军工程大学学报:自然科学版,2013,14(4):5-8.
WU Yong-gen,LI Wen-zhe,HAN Zhao,et al.Effect of Sand Fineness Modulus on Performance of Pavement Concrete[J].Journal of Air Force Engineering University:Natural Science Edition,2013,14(4):5-8.
[18]CELIKT T,MARAR K.Effects of Crushed Stone Dust on Some Properties of Concrete[J].Cement and Concrete Research,1996,26(7):1121-1130.
[19]唐凯靖,刘来宝,周 应.岩性对机制砂特性及其混凝土性能的影响[J].混凝土,2011(12):62-63,66.
TANG Kai-jing,LIU Lai-bao,ZHOU Ying.Effects of Lithology on Properties of Manufactured Sand and the Performance of the Concrete with Manufactured Sand[J].Concrete,2011(12):62-63,66.
[20]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.
GUO Zhen-hai,SHI Xu-dong.Reinforced Concrete Theory and Analyses[M].Beijing:Tsinghua University Press,2003.
[21]YANG H F,LIANG D Y,DENG Z G,et al.Effect of Limestone Powder in Manufactured Sand on the Hydration Products and Microstructure of Recycled Aggregate Concrete[J].Construction and Building Materials,2018,188:1045-1049.
[22]LI B X,KE G J,ZHOU M K.Influence of Manufactured Sand Characteristics on Strength and Abrasion Resistance of Pavement Cement Concrete[J].Construction and Building Materials,2011,25(10):3849-3853.
[23]AN J,KIM S,NAM B.Effect of Aggregate Mineralogy and Concrete Microstructure on Thermal Expansion and Strength Properties of Concrete[J].Applied Science,2017,7(12):1307.
[24]GUPTA L K,VYAS A K.Impact on Mechanical Properties of Cement Sand Mortar Containing Waste Granite Powder[J].Construction and Building Materials,2018,191:155-164.
[25]ZHOU M K,CAI J W,WANG J L,et al.Research on Properties of Concrete Prepared with Artificial Sand Containing Stone Powder at High Content[J].Key Engineering Materials,2006,302:263-268.
[26]李北星,周明凯,田建平,等.石粉与粉煤灰对C60机制砂高性能混凝土性能的影响[J].建筑材料学报,2006,9(4):381-387.
LI Bei-xing,ZHOU Ming-kai,TIAN Jian-ping,et al.Effect of Stone Dust and Fly Ash on Properties of C60 High Performance Concrete Containing Manufactured Sand[J].Journal of Building Materials,2006,9(4):381-387.
表3 机制砂混凝土配合比
Tab.3 Mix Proportions of MSC
混凝土强度 水灰比 砂率/% 材料用量/(kg·m-3)水 水泥 砂 碎石 减水剂C40 0.38 42 160 421 748 1 021 4.63C50 0.31 38 153 494 685 1 118 5.93

Memo

Memo:
-
Last Update: 2021-01-20