Influence of Fibreglass Mesh on Physical Properties of Lightweight Foamcrete

Abstract

This research project was designed to investigate the influence of fibremesh on the durability properties of lightweight foamcrete (LFC). The fibremesh, categorized as a synthetic fibre (man-made fibre), was used for this study. It poses a continuous fibre with warp and weft structure that was used as confinement material in this investigation where four different weights per area (g/m2) of the fibremesh were observed namely, 110 g, 130 g, 145 g, and 160 g. Three experimental tests were involved in this preliminary study: porosity, water absorption, and drying shrinkage test. All the specimens were confined with 1-layer fibremesh at a constant density of 1100kg/m3 of LFC and the result was compared with the control (unconfined LFC). The 160 g/m2 of fibremesh significantly improved the physical properties of LFC where 13.8%, 20%, and 57.4% enhancement was obtained for the porosity, water absorption, and drying shrinkage result, respectively. ABSTRAK: Projek penyelidikan ini dijalankan bagi menyiasat kesan pengunaan jejaring sabut pada sifat ketahanan konkrit ringan berbusa (LFC). Jejaring sabut yang digunakan dalam kajian ini adalah jejaring gentian kaca tahan-alkali yang dikategorikan sebagai serat sintetik yang juga dikenali sebagai fabrik tekstil. Ia mempunyai serat yang panjang dan bersambung dengan struktur yang lekuk dan renda yang digunakan sebagai penambahbaikan bagi konkrit ringan berbusa. Terdapat empat berat jejaring sabut yang diuji iaitu 110 g, 130 g, 145 g, dan 160 g. Tiga jenis eksperimen bagi kajian awal ini iaitu keliangan, penyerapan air, dan pengecutan pengeringan. Semua spesimen dibalut dengan 1 lapisan jejaring sabut pada 1100kg/m3 LFC dan data yang diperoleh dibandingkan dengan spesimen yang tidak dibalut dengan gentian kaca berjejaring. Jejaring sabut 160 g/m2 meningkatkan sifat fizikal konkrit ringan berbusa di mana 13.8%, 20%, dan 57.4% peningkatan diperoleh bagi keliangan, penyerapan air, dan pengecutan pengeringan, masing-masing.

Thermal Performance and Electrical Sensitivity of Foamed Concrete Incorporating Ground Granulated Blast-Furnace Slag (GGBS)

“…The exclusion of coarse aggregate in the production of foamed concrete, coupled with the potential substitution of renewable materials like pulverized fuel ash, silica fume, and ground-granulated blast furnace, allows for the partial or complete replacement of cement in the aforementioned process [26][27][28][29][30]. Furthermore, it is worth noting that foamed concrete exhibits considerable promise as a viable option for utilization as a structural material, boasting a commendable strength threshold of 27N/mm 2 [31][32][33][34][35]. Typically, the compressive strength of foamed concrete, spanning a range of densities from 550 kg/m 3 to 1050 kg/m 3 , is observed to vary between 1 MPa and 6 MPa [36].…”

Mechanical Properties of Lightweight Foamed Concrete Modified with Magnetite (Fe3O4) Nanoparticles

“…The manufacturing of LFC is nontoxic, and the product does not produce toxic gases when it is exposed to fire. By properly controlling the foaming agent amount, LFC with densities ranging from 550 kg/m 3 to 1850 kg/m 3 can be achieved [ 14 ]. Additionally, the reduction in structural dead load due to its reduced density can aid in reining in the construction activity.…”

Durability Properties of Lightweight Foamed Concrete Reinforced with Lignocellulosic Fibers

“…This includes evenly distributed, short discrete fibers that are oriented randomly [15]. The most commonly used fibers for concrete strengthening are glass, carbon and steel which promote high strength and modulus for structural functions [16]. However, these fibers have a reasonably high cost compared to natural fibers.…”