Comparación de la adición de cenizas de cascarilla de arroz y cenizas de tejas a cemento de geopolímero en base a cenizas volantes con cemento Portland

D Nurtanto,W Yunarni,I Junaidi,W Wahyuningtyas

doi:10.4067/s0718-50732020000300287

Abstract

The use of Portland cement is considered a very good material for making concrete. This is because many are found in building shops and it's high performance in making concrete. Research on alternative Portland cement is a worldwide priority for reducing CO emissions to the atmosphere. Alternative Portland cement is a material containing aluminosilicate which is dissolved with an alkaline solution to produce strong pozzolanic properties and replace the function of Portland cement. Natural aluminosilicates can be found in agricultural and industrial wastes. For example fly ash (FA), roof tile ash (RTA), rice husk ash (RHA), sugar cane bagasse ash (SCBA). This method estimates the development of mechanical properties of concrete with alternative portland cement with concrete with portland cement throughout the treatment process. The mechanical properties that will be seen are setting time and compressive strength. Alternative Portland cement uses the basic ingredients of fly ash aluminosilicate with an alkaline activator solution (NaOH, Na2SiO3) of 12 Molar. This study is based on experimental studies by replacing FA by 5% and 10% with RHA and RTA where the development of several mechanical properties will be investigated. The results show that several alternative portland cement mixes have similar mechanical properties to portland cement .

Highlights

Cement is one of the main ingredients to make concrete, which serves as a binder with fine aggregate, coarse aggregate, and water with or without additional mixed materials
Increased use of cement can be seen with the increasing needs of concrete annually, it is an adverse impact on the environment due to any cement manufacturing generated CO2 released in the atmosphere when calcium carbonate is heated and produces lime (Amran et al, 2020)(Stafford et al, 2015)
The purpose of this research is to experimentally test the setting time performance and compressive strength of fly ash-based geopolymer concrete compared to portland cement concrete

Summary

Introduction

Cement is one of the main ingredients to make concrete, which serves as a binder with fine aggregate, coarse aggregate, and water with or without additional mixed materials. That in the process of cement production reduces greenhouse gas emissions and energy efficiency occurs Among these alternative materials are materials that contain many elements of silica (Si) and alumina (Al)(Torres-Carrasco and Puertas, 2017), both natural materials (clay)(Chen et al, 2016)(Yanguatin et al, 2017) or industrial waste products, such as fly ash(Yacob et al, 2019)(Gülşan et al, 2019)(Pavithra et al, 2016)(Pasupathy et al, 2017)(Muhammad et al, 2019) , rice husk ash (Nuaklong et al, 2020)(Akasaki et al, 2016), sugar cane bagasse ash (Mello et al, 2020)(Fairbairn et al, 2010)(Bahurudeen et al.; 2015) (Nugroho et al.; 2017), roof tile ash (Reggiani, 2019) (Bui et al, 2017)(Rachman, 2015)

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Conclusion