Perlite microsphere for the use in lightweight cementitious composite

Shah, Syed Nasir and Cheng, Wei Da and Kam, Jeck Kie and Loh, Zhi Pin and Ibrahim, Zainah and Mo, Kim Hung (2023) Perlite microsphere for the use in lightweight cementitious composite. Composites and Advanced Materials, 32. ISSN 2634-9833, DOI

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This preliminary work explores the possibility of utilizing perlite microsphere (PM) in producing lightweight cementitious composite (LCC). With the use of PM, LCC with dry density of about 1400 kg/m(3) (35% reduction in density compared to normal cement mortar) can be obtained. Satisfactory compressive strengths of 32.6-34.5 MPa could be attained by the PM LCC, without and with supplementary cementitious materials such as silica fume and ground granulated blast furnace slag. The specific strength (compressive strength/density ratio) of LCC was also similar as the normal cement mortar. In addition, there was little difference in the flexural strength and drying shrinkage of PM LCC compared to normal cement mortar. Furthermore, similar flexural load-displacement behaviour was found between thin plate specimens produced with alkali-resistant glass fibre mesh reinforced LCC and that of normal cement mortar. In overall, this suggests that PM has the potential to be utilized as lightweight filler in producing LCC.

Item Type: Article
Funders: Ministry of Education, Malaysia (Grant No: FRGS/1/2018/TK06/UM/02/1)
Uncontrolled Keywords: Perlite microsphere; Lightweight filler; Lightweight cementitious composite; Lightweight aggregate
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering > Department of Civil Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 01 Dec 2023 02:40
Last Modified: 01 Dec 2023 02:40

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