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Design of high strength and lightweight construction composites using advanced porous and tough cementitious materials
Guo, Hongda1; Liu, Qing1; Xu, Jianyu1; Sun, Guoxing2
2021-03-01
Source PublicationJournal of Advanced Concrete Technology
ISSN1346-8014
Volume19Issue:3Pages:240-247
Abstract

High-strength and lightweight are two of the most important parameters for composites in the construction field. Here, we developed a novel foam concrete structure with sandwich porous structure by using in-situ polymerized polyacrylamide and ultra-stable foam, which can obtain higher mechanical strength in comparison to the normal porous concrete with the same density. The ratio of stiffness to weight was maximized to achieve the optimal sandwich porous structure size. The SEM images showed that the interface bond between the foam concrete and the polymer modified cement paste was tight and robust. The flexural strength of the novel structure was 65.6% higher than that of the foamed concrete at the same density. The series model was established to calculate the composite thermal conductivity of the novel foam concrete structure, indicating that the heat insulation was slightly improved compared with the normal foam concrete. Moreover, water resistance displayed a slight increase by constructing this sandwich porous structure. Hopefully, the novel composite with sandwich porous structure can put a new way for designing the lightweight and high strength insulation thermal structure.

DOI10.3151/jact.19.240
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaConstruction & Building Technology ; Engineering ; Materials Science
WOS SubjectConstruction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS IDWOS:000635174800007
Scopus ID2-s2.0-85103200717
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorSun, Guoxing
Affiliation1.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Avenida da Universidade, Macao
2.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Avenida da Universidade, Macao
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Guo, Hongda,Liu, Qing,Xu, Jianyu,et al. Design of high strength and lightweight construction composites using advanced porous and tough cementitious materials[J]. Journal of Advanced Concrete Technology,2021,19(3):240-247.
APA Guo, Hongda,Liu, Qing,Xu, Jianyu,&Sun, Guoxing.(2021).Design of high strength and lightweight construction composites using advanced porous and tough cementitious materials.Journal of Advanced Concrete Technology,19(3),240-247.
MLA Guo, Hongda,et al."Design of high strength and lightweight construction composites using advanced porous and tough cementitious materials".Journal of Advanced Concrete Technology 19.3(2021):240-247.
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