Mix Design and Characteristics of Compressive Strengths for Foam Concrete Associated with the Application of Bottom Ash

Abstract

Differently from fly ash, the bottom ash produced from thermoelectric power plant has been treated as an industrial waste matter, and almost reclaimed a tract from the sea. If this waste material is applicable to foam concrete as an aggregate owing to its lightweight , however, it may be worthy of environmental preservation by recycling of waste material as well as reducing self-weight of high-rising structure and horizontal forces and deformations of retaining wall subject to soil pressure. This study has an objective of evaluating the effects of application of bottom ash on the mechanical properties of foam concrete. Thus, the ratio of bottom ash to cement was selected as a variable for experiment and the effect was measured in terms of unit weight of concrete, air content, water-cement ratio and compressive strength. It can be observed from experiments that the application ratios have different effects on the material parameters considered in this experiment, thus major relationships between application ratio and each material parameter were finally introduced. The result of this study can be applied to decide a mix design proportion of foam concrete while bottom ash is used as an aggregate of the concrete.

An Experimental Study on the Calculation of Optimal Foam Content Ratio for Low-carbon Concrete

“…Furthermore, domestic studies on aerated concrete have mainly focused on evaluating the basic physical properties of concrete to achieve performance improvement and economic efficiency by applying industrial byproducts such as fly ash or blast furnace slag [8]- [9]. In contrast, domestic research on the combination of bubbles and bottom ash lightweight aggregate concrete is very insufficient [10].…”

Evaluation of Compressive and Shear Strength Characteristics in High Volume Fly Ash Concrete

“…FA (Fly Ash) is byproduct in thermal power plant and various engineering advantages have been reported like long-term strength gaining, resistance to chloride attack, low hydration heat, and improved workability [7][8][9]. Furthermore pond ash excavated from reclaimed site is studied for application to concrete or cement mortar [10][11][12]. Despite of various efforts in employing supplementary material, the replacement ratio to OPC (Ordinary Portland Cement) is usually considered lower than 30% since quality control and early strength development in HVFAC are very difficult in ready mixed concrete-large quantity manufacturing.…”

The Durability of the Concrete Using Bottom Ash as Fine Aggregate

“…바텀애쉬를 경량골재나 경량기포콘크리트에 사용하기 위한 연구 (Jo et al 2004;Kim et al 2009a;2009b) 및 콘크리트용 골재로 사용하 기 위한 연구 Lee et al 2002) …”