The effects of aggregate properties on lightweight concrete

被引：142
|
作者：
Lo, Tommy Y. [1 ]
Tang, W. C. [1 ]
Cui, H. Z. [1 ]
机构：
[1] City Univ Hong Kong, Dept Bldg & Construct, Kowloon, Hong Kong, Peoples R China
来源：
BUILDING AND ENVIRONMENT | 2007年 / 42卷 / 08期
关键词：
lightweight concrete; strength; w/c ratio; porosity;
D O I：
10.1016/j.buildenv.2005.06.031
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper describes a study of the effects of several factors on the strength of lightweight aggregate concrete composites: aggregate strength, w/c ratio and the porosities of the interfacial zone and within the hardened cement paste. Concrete samples with three different water cement ratios (i.e. 0.4, 0.44, 0.48) were compared. The crushing strengths of three grades of expanded clay lightweight aggregates (i.e. 25, 15, 5 mm) and the pore distributions of the hardened cement pastes were measured. Increasing the water/cement ratio was found to decrease the strength of lightweight aggregate concrete. The numbers of pores within the cement paste and in the aggregate/cement paste interfacial zone were found to increase. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3025 / 3029
页数：5
相关论文
共 50 条
  • [21] Effect of lightweight aggregates on the mechanical properties and brittleness of lightweight aggregate concrete
    Cui, H. Z.
    Lo, Tommy Yiu
    Memon, Shazim Ali
    Xu, Weiting
    CONSTRUCTION AND BUILDING MATERIALS, 2012, 35 : 149 - 158
  • [22] Mechanical properties of lightweight aggregate concrete at high temperature
    Guan, R.
    FUNCTIONAL MATERIALS, 2019, 26 (03): : 573 - 578
  • [23] Investigation of properties of lightweight concrete with calcined diatomite aggregate
    Posi, Patcharapol
    Lertnimoolchai, Surasit
    Sata, Vanchai
    Phoo-ngernkham, Tanakorn
    Chindaprasirt, Prinya
    KSCE JOURNAL OF CIVIL ENGINEERING, 2014, 18 (05) : 1429 - 1435
  • [24] NUMERICAL EVALUATION OF LIGHTWEIGHT AGGREGATE CONCRETE MECHANICAL PROPERTIES
    Bonifacio, Aldemon
    Mendes, Julia
    Barbosa, Flavio
    Farage, Michele
    Ortola, Sophie
    Moreira, Fernanda
    ARCHITECTURE CIVIL ENGINEERING ENVIRONMENT, 2015, 8 (03) : 45 - 50
  • [25] Factors influencing the mechanical properties of lightweight aggregate concrete
    Xing, Guohua (luckly998@126.com), 1600, National Institute of Science Communication and Information Resources (23):
  • [26] Influence of Polymer on Properties of Mixed Lightweight Aggregate Concrete
    Zhao, Zhuang
    Xiao, Liguang
    PROCEEDINGS OF THE 6TH ASIAN SYMPOSIUM ON POLYMERS IN CONCRETE, 2009, : 412 - 416
  • [27] Investigation of properties of lightweight concrete with calcined diatomite aggregate
    Patcharapol Posi
    Surasit Lertnimoolchai
    Vanchai Sata
    Tanakorn Phoo-ngernkham
    Prinya Chindaprasirt
    KSCE Journal of Civil Engineering, 2014, 18 : 1429 - 1435
  • [28] Evaluation of Mechanical Properties of Lightweight Concrete with Pumice Aggregate
    Shafiq, Malik
    Khan, Fasih
    Badrashi, Yasir
    Khan, Fayaz
    Fahim, Muhammad
    Abbas, Asim
    Adil, Waqas
    ADVANCES IN SCIENCE AND TECHNOLOGY-RESEARCH JOURNAL, 2021, 15 (02) : 30 - 38
  • [29] Effect of Lightweight Aggregate Impregnation on Selected Concrete Properties
    Domagala, Lucyna
    Podolska, Agnieszka
    MATERIALS, 2022, 15 (01)
  • [30] Effect of expanded perlite aggregate on the properties of lightweight concrete
    Topcu, Ilker Bekir
    Isikdag, Burak
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2008, 204 (1-3) : 34 - 38
12345