[1]许玮滢,杨树桐,孙 赫,等.碱激发矿粉海水珊瑚骨料混凝土力学性能研究[J].西安建筑科技大学学报(自然科学版),2019,51(02):243-0248.[doi:10.15986/j.1006-7930.2019.02.014]
　XU Weiying,YANG Shutong,SUN HeXU Chengji.Study on mechanical properties of seawater coral alkali-activated slag concrete[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(02):243-0248.[doi:10.15986/j.1006-7930.2019.02.014]
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碱激发矿粉海水珊瑚骨料混凝土力学性能研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
51
期数:
2019年02期
页码:
243-0248
栏目:
出版日期:
2019-04-28

文章信息/Info

Title:
Study on mechanical properties of seawater coral alkali-activated slag concrete
文章编号:
1006-7930(2019)02-0243-06
作者:
许玮滢1; 杨树桐1; 2; 孙 赫1; 徐铖基1
(1. 中国海洋大学工程学院 土木工程系,山东 青岛,266100;2. 青岛理工大学 蓝色经济区工程建设与安全协同创新中心,山东 青岛,266033)
Author(s):
XU Weiying1;  YANG Shutong1; 2;  SUN He1XU Chengji1
(1. Department of Civil Engineering in College of Engineering in Ocean University of China, Shandong Qingdao266100, China2. Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao University of Technology, Shandong Qingdao266033, China )
关键词:
Study on mechanical properties of seawater coral alkali-activated slag concrete
Keywords:
Alkali-activated slag;  coral aggregate ;  seawater;  sand ratio;  concrete
分类号:
TU501
DOI:
10.15986/j.1006-7930.2019.02.014
文献标志码:
A
摘要:
本文以矿粉为原材料，通过碱激发的方式制备胶凝材料，拌以海水和珊瑚骨料制备碱激发矿粉海水珊瑚骨料混凝土。本文首先通过碱激发矿粉海水珊瑚砂浆试验确定了合理的水胶比。进而通过改变珊瑚骨料相对于普通骨料的替代量，发现碱激发矿粉混凝土强度随替代量的增加而不断降低。基于此，提出了提高混凝土的砂率、增大浆体对骨料的包裹作用，以提高碱激发全珊瑚骨料混凝土的强度。本文确定砂率为60%，提出了碱激发矿粉海水珊瑚骨料混凝土的合理配合比，并进行了基本力学性能试验。结果表明，由于海水与珊瑚骨料的早强作用，该新型混凝土7d的抗压强度与抗拉强度均达到28d的70%以上。且轴心抗压强度与立方体抗压强度的比明显高于普通混凝土。
Abstract:
Alkali-activated slag was used as cementing materials to produce seawater coral aggregate concrete in the present study. Proper water-to-binding materials ratio was first determined by test of seawater coral alkali-activated slag mortar. Then the strength of alkali-activated slag concrete is found to be reduced as the replacement level of crushed stones by coral aggregates increases. Thus, it is necessary to improve the coral sand ratio (SP) and enveloping effect on the aggregates to increase the strength of seawater coral alkali-activated slag concrete (SCASC). The rational mix proportion of SCASC was then determined by setting the SP as 60% and the test on basic mechanical properties of SCASC was carried out. Results show that both the compressive strength and tensile strength at 7-day are more than 70% of those at 28-day. Moreover, the ratio of the uniaxial compressive strength to the cubic compressive strength is significantly larger than that in ordinary concrete

参考文献/References:

参考文献 References[1] 张人为. 用循环经济理念大力推广水泥窑纯低温余热发电 [J]. 中国水泥, 2006, (6): 8-11. (ZHANG R W. Promote the pure low temperature waste heat power generation of cement kiln with the concept of circular economy[J]. China Cement, 2006, (6): 8-11.(in Chinese))[2] 史才军, 巴维尔•克利文科, 黛拉•罗伊. 碱-激发水泥和混凝土 [M]. 北京: 化学工业出版社, 2008.(SHI C J, P.V.Krivenko, Della Roy, Alkali-activated cements and concretes [M]. Beijing: Chemical Industry Press, 2008. (in Chinese))[3] 靡人杰, 余红发, 麻海燕等. 全珊瑚骨料海水混凝土力学性能试验研究 [J]. 海洋工程, 2016, 34: 47-54. (MI R J, YU H F, MA H Y, et al. Study on mechanical property of coral concrete [J]. The Ocean Engineering, 2016, 34: 47-54.(in Chinese))[4] RICK A E. Coral concrete at bikini atoll [J]. Concrete International, 1991, 13(1): 19-24.[5] LI Y L, ZHAO X L, RAMAN Singh R K, et al. Thermal and mechanical properties of alkali-activated slag paste, mortar and concrete utilising seawater and sea sand [J]. Construction and Building Materials, 2018, 159: 704-724.[6] 喻骁, 胡爱宇. 氢氧化钠与硅酸钠对矿渣活性的激发效果浅析[J]. 浙江建筑, 2012, 29(7): 48-51.(YU X, HU A Y, Analysis of the stimulation effect of sodium hydroxide and sodium silicate on slag activity [J]. Zhejiang Construction, 2012, 29(7): 48-51. (in Chinese))[7] 中华人民共和国行业标准. JGJ/T 70-2009 建筑砂浆基本性能试验方法标准 [S]. 北京: 中国建筑工业出版社, 2009. (JGJ/T 70-2009, Standard for test method of basic properties of construction mortar [S]. Beijing: China Building Industry Press, 2009. (in Chinese))[8] 中华人民共和国国家标准. GB/T 50081-2002 普通混凝土力学性能试验方法标准 [S].北京: 中国建筑工业出版社, 2002.（National standard of the people’s republic of China. GB/T 50081-2002, Standard for test method of mechanical properties on ordinary concrete [S]. Beijing: China Building Industry Press, 2009.(in Chinese))[9] YANG S T, YANG C, HUANG M L, et al. Study on bond performance between FRP bars and seawater coral aggregate concrete [J]. Construction and Building Materials, 2018, 173: 272-288.[10] 刘巽伯, 杨正宏, 计亦奇. 轻骨料混凝土抗压强度浅析[C]// 中国建筑学会建筑建筑材料分会2011年学术交流会议论文集. 常州：中国建筑学会建筑材料分会. 2012：296-301.（LIU X B, YANG Z H, JI Y Q, Simple analysis on compressive strength of LWAC [C]//Proceedings of the 2011 Academic Exchange Conference of the Architectural Building Materials Branch of the National Architectural Association. Changzhou: The Architectural Society of China. 2012：296-301.

备注/Memo

备注/Memo:
收稿日期：2018-10-01 修改稿日期：2019-03-18基金项目：国家自然科学基金项目（51778591）；山东省研究生教育创新计划项目（HDJG17006）第一作者：许玮滢（1994-），女，福建人，硕士生，主要从事碱激发混凝土力学性能研究。通讯作者：杨树桐（1979-），男，山东人，教授，博士生导师，主要从事混凝土断裂力学、混凝土加固与锚固的理论与试验研究。（ E-mail: shutongyang2013 @163.com.）
更新日期/Last Update: 2019-05-23