TY - JOUR
T1 - Properties of a New Insulation Material Glass Bubble in Geopolymer Concrete
AU - Shahedan, Noor Fifinatasha
AU - Abdullah, Mohd Mustafa Al Bakri
AU - Mahmed, Norsuria
AU - Kusbiantoro, Andri
AU - Tammas-Williams, Sam
AU - Li, Long Yuan
AU - Aziz, Ikmal Hakem
AU - Vizureanu, Petrică
AU - Wysłocki, Jerzy J.
AU - Błoch, Katarzyna
AU - Nabiałek, Marcin
PY - 2021/2/8
Y1 - 2021/2/8
N2 - This paper details analytical research results into a novel geopolymer concrete embedded with glass bubble as its thermal insulating material, fly ash as its precursor material, and a combination of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) as its alkaline activator to form a geopolymer system. The workability, density, compressive strength (per curing days), and water absorption of the sample loaded at 10% glass bubble (loading level determined to satisfy the minimum strength requirement of a load-bearing structure) were 70 mm, 2165 kg/m3, 52.58 MPa (28 days), 54.92 MPa (60 days), and 65.25 MPa (90 days), and 3.73 %, respectively. The thermal conductivity for geopolymer concrete decreased from 1.47 to 1.19 W/mK, while the thermal diffusivity decreased from 1.88 to 1.02 mm2/s due to increased specific heat from 0.96 to 1.73 MJ/m3K. The improved physicomechanical and thermal (insulating) properties resulting from embedding a glass bubble as an insulating material into geopolymer concrete resulted in a viable composite for use in the construction industry.
AB - This paper details analytical research results into a novel geopolymer concrete embedded with glass bubble as its thermal insulating material, fly ash as its precursor material, and a combination of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) as its alkaline activator to form a geopolymer system. The workability, density, compressive strength (per curing days), and water absorption of the sample loaded at 10% glass bubble (loading level determined to satisfy the minimum strength requirement of a load-bearing structure) were 70 mm, 2165 kg/m3, 52.58 MPa (28 days), 54.92 MPa (60 days), and 65.25 MPa (90 days), and 3.73 %, respectively. The thermal conductivity for geopolymer concrete decreased from 1.47 to 1.19 W/mK, while the thermal diffusivity decreased from 1.88 to 1.02 mm2/s due to increased specific heat from 0.96 to 1.73 MJ/m3K. The improved physicomechanical and thermal (insulating) properties resulting from embedding a glass bubble as an insulating material into geopolymer concrete resulted in a viable composite for use in the construction industry.
UR - https://pearl.plymouth.ac.uk/secam-research/957/
U2 - 10.3390/ma14040809
DO - 10.3390/ma14040809
M3 - Article
SN - 1996-1944
VL - 14
SP - 809
EP - 809
JO - Materials
JF - Materials
IS - 4
ER -