Open AccessRational Proportion For Mixture Of Foamed Concrete Design
Author(s) -
Fahrizal Zulkarnain,
Mahyuddin Ramli
Publication year - 2011
Publication title -
jurnal teknologi/jurnal teknologi
Language(s) - English
Resource type - Journals
eISSN - 2180-3722
pISSN - 0127-9696
DOI - 10.11113/jt.v55.73
Subject(s) - silica fume , portland cement , composite material , superplasticizer , compressive strength , materials science , fireproofing , cement
Kajian ini membentangkan sebahagian hasil kerja makmal untuk reka bentuk konkrit ringan berbusa dengan Protein Agent 1 sebagai busa, silica fume (SF) sebagai bahan tambah dan superplasticizer (SP). Konkrit ringan berbusa terkawal dicampurkan dengan kandungan simen Portland biasa (OPC) dan silica fume, campuran tersebut pada kadar 10 peratus, dari berat simen sebagai bahan tambah akan disediakan. Silica fume digunakan untuk meningkatkan kekuatan mampat dan juga menjimatkan kos. Konkrit berbusa diawetkan pada kisaran 70 peratus kelembapan dan 28 darjah kandungan udara. Sifat mekanikal daripada struktur konkrit ringan berbusa juga didedahkan. Dapatan kajian menunjukkan bahawa serapan air dalam kajian besar adanya. Walaupun demikian, silica fume perlu digunakan untuk menghasilkan struktur ringan berbusa yang murah dan mesra alam, dengan kekuatan mampat dan kawalan struktur ringan berbusa menggunakan simen Portland biasa (OPC) sahaja. Kata kunci: Campuran konkrit berbusa; ketumpatan mortar; ketumpatan sebenar; sifat mekanikal; kekuatan mampat This paper presents part of the results of laboratory work to design a lightweight foamed concrete made with Protein Agent 1 as foam, silica fume (SF) mineral admixture and superplasticizer (SP). Control of foamed concrete mixture made with foam containing only Ordinary Portland Cement (OPC) and SF, lightweight foam concrete mixture containing 10% of SF as a replacement for the cement in weight basis was prepared. SF is used to increase the compressive strength and for economical concerns. The foam concrete was cured at 70% relative humidity and ± 28°C temperature. The mechanical properties of a lightweight foam concrete with OPC are presented. The findings indicate that water absorption of aggregate is large in this case. However, the use of SF seems to be necessary for the production of cheaper and environmentfriendly structural foamed concrete with compressive strength and control structural foamed concrete containing only OPC. Key words: Foam concrete mixed; mortar density; actual density; mechanical properties; compressive strength