The effect of foam and fly ash percentage on properties of foamed concrete

2021 ◽  
Author(s):  
M. Agung Prasetyo J. ◽  
Saloma ◽  
Hanafiah ◽  
Ika Juliantina ◽  
M. Lindung Persada P. W.
Keyword(s):  
Fly Ash ◽  
Foamed Concrete

The influence of wet ground fly ash on the performance of foamed concrete

2021 ◽  
Vol 304 ◽  
pp. 124676
Author(s):  
Guangyan Li ◽  
Hongbo Tan ◽  
Xingyang He ◽  
Junjie Zhang ◽  
Xiufeng Deng ◽  
...  
Keyword(s):  
Fly Ash ◽  
Foamed Concrete ◽  
Wet Ground

scholarly journals High-volume, ultra-low-density fly ash foamed concrete

2017 ◽  
Vol 69 (22) ◽  
pp. 1146-1156 ◽  
Author(s):  
M. Roderick Jones ◽  
Kezban Ozlutas ◽  
Li Zheng
Keyword(s):  
Fly Ash ◽  
High Volume ◽  
Low Density ◽  
Foamed Concrete

Effect of Steel and Alkaline-Resistance Glass Fibre on Mechanical and Durability Properties of Lightweight Foamed Concrete

2012 ◽  
Vol 626 ◽  
pp. 404-410 ◽  
Author(s):  
Muhammad Hafiz Ahmad ◽  
Hanizam Awang
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Water Absorption ◽  
Glass Fibre ◽  
Steel Fibre ◽  
Drying Shrinkage ◽  
Early Age ◽  
Durability Properties ◽  
Alkaline Resistance ◽  
Foamed Concrete

This paper investigates the effect of steel fibre and alkaline-resistance glass fibre lightweight foamed concrete with fly ash inclusion towards mechanical and durability properties. The lightweight foamed concrete (LFC) with a density of 1000 kg/m3with constant water sand ratio of 1: 1:5 and water cement ratio of 0.45 was cast and tested. Steel and alkaline-resistance glass fibres were used as additives and 30% of cement was replaced by fly ash. Detail experiments were setup to study the behaviour and reaction of additives which is expected to give different results on mechanical and durability properties of LFC. Compared to AR-glass fibre, steel fibre has greater contribution in terms of mechanical properties. SFLFC resulted as the most effective approach for compressive, flexural, tensile split and water absorption with strength 6.13 N/mm2, 1.96 N/mm2, 1.52 N/mm2and lowest water absorption at 6.5% respectively. On the other hand, AR-glass fibre is better in controlling drying shrinkage which leads to controlling the cracking at early age. Fly ash does not change the mechanical properties and durability due to unprocessed stage to its finer forms.

Research on the Foamed Concrete with High Volume Fly Ash

2017 ◽  
Vol 727 ◽  
pp. 1062-1066
Author(s):  
Hui Chao Chu ◽  
Xian Jun Lyu ◽  
Yan Zhang
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Fly Ash ◽  
Water Absorption ◽  
Process Parameters ◽  
High Volume ◽  
Dry Density ◽  
High Volume Fly Ash ◽  
Foamed Concrete

A study has been undertaken to investigate the effects, on the properties of foamed concrete, of replacing large volumes of cement with fly ash. This paper reports the results of the properties of foamed concrete and shows that up to 55% of the cement could be replaced without any significant reduction in compressive strength. Foamed concrete with 55% fly ash and good performance were obtained by optimizing the process parameters. The results showed that the compressive strength, dry density, water absorption and thermal conductivity of foamed concrete with 55% fly ash were 0.71MPa, 244kg/m3, 33%, and 0.045 W/mK respectively.

scholarly journals Influence of Fly Ash on the Compressive Strength of Foamed Concrete at Elevated Temperature

2014 ◽  
Vol 15 ◽  
pp. 01003
Author(s):  
H. Ahmad ◽  
N. Wahid ◽  
M.F.A. Rahman ◽  
N.A. Karim
Keyword(s):  
Compressive Strength ◽  
Elevated Temperature ◽  
Fly Ash ◽  
Foamed Concrete

scholarly journals Experiments on Foamed Concrete for the Development of Building Blocks

2020 ◽  
Vol 8 (5) ◽  
pp. 2824-2829
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Building Blocks ◽  
Ash Content ◽  
Partial Replacement ◽  
Dry Density ◽  
Load Bearing ◽  
Concrete Building ◽  
Concrete Blocks ◽  
Foamed Concrete

Foamed concrete is an innovative and versatile lightweight building material, which is a cement-based mortar consisting of at least 20% of its volume filled with air. Use of lightweight foamed concrete blocks with densities less than 1800 kg/m3 as infills will lead to the design of slender sections. Further, the thermal insulation properties of foamed concrete blocks made it more popular in construction industry. This paper discusses the development of foamed concrete building blocks for load bearing and non-load bearing structures. To make the mix more sustainable, the feasibility of fly ash as a partial replacement to cement is also explored. The variables considered for the production of foamed concrete are foam volume, water/powder (mix of cement and fly ash) ratio, fly ash content and sand/powder ratio. Analytical model is also developed for compressive strength and dry density of foamed concrete considering different variables and it is validated. Compressive strength is found to be increasing with the increase in dry density and with increase in fly ash content. Thermal conductivity is observed to be reduced by the addition of fly ash content

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