Efflorescence Control in Calcined Kaolin-Based Geopolymer Using Silica Fume and OPC

Matalkah, Faris; Ababneh, Ayman; Aqel, Ruba

doi:10.1061/(asce)mt.1943-5533.0003764

Cited by 7 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nano alumina has minimal effect on polymerization in general. However, it may serve as a nano filler, enhancing the microstructure by filling pore spaces [ 93 ]. According to research, the inclusion of nano-TiO 2 causes the development of more hydrated structures.…”

Section: Influences Of Nanomaterials On Fresh and Hardened Properties...mentioning

confidence: 99%

Review on the Relationship between Nano Modifications of Geopolymer Concrete and Their Structural Characteristics

et al. 2022

View full text Add to dashboard Cite

The main objective of this review is to study some important nanomaterials and their impact on the performance of geopolymer concrete. This paper is an investigation into trends and technology in the development of different nanomaterials to develop higher structural performance geopolymer concrete. The effect of the alkaline to binder and sodium silicate to sodium hydroxide ratio on the performances of geopolymer performances is studied. The relationship between setting time and slump is evaluated through the ternary plot, the variation in compressive strength values is evaluated using the kernel density plot, and the relationship between split tensile and flexural strength is investigated using the scattering interval plot. Regression analysis is carried out among water absorption and bulk-density result values obtained from previous literature. As the molarity and alkaline to binder (A/B) ratios increase, the strength development of geopolymer concrete increases up to a specific limit. The addition of a small quantity of nanomaterials, namely, nano silica, nano alumina, carbon nano tubes, and nano clay, led to the maximum strength development of geopolymer concrete. Incorporating these nanomaterials into the geopolymer significantly refines the structural stability, improving its durability. The various products in GP composites emerging from the incorporation of highly reactive SEM, XRD, and FTIR analysis of nanomaterials reveal that the presence of nanomaterials, which enhances the rate of polymerization, leads to better performance of the geopolymer.

show abstract

Section: Influences Of Nanomaterials On Fresh and Hardened Properties...mentioning

confidence: 99%

Review on the Relationship between Nano Modifications of Geopolymer Concrete and Their Structural Characteristics

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In addition, the inner portion of industrial waste such as fly ash adds many advantages and causes geopolymers to be a completely new green material for use in the construction industry [ 7 , 8 , 9 ]. Some studies indicate that the use of geopolymers can reduce greenhouse gas emissions from 44% to 64% in comparison to that for the production of ordinary Portland cement (OPC) [ 10 , 11 , 12 ]. If careful design of geopolymer cement is carried out, its production will require less energy and may reduce CO 2 emission by 80% compared to those from OPC production [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Geopolymers and Fiber-Reinforced Concrete Composites in Civil Engineering

et al. 2021

View full text Add to dashboard Cite

This paper discusses the influence of fiber reinforcement on the properties of geopolymer concrete composites, based on fly ash, ground granulated blast furnace slag and metakaolin. Traditional concrete composites are brittle in nature due to low tensile strength. The inclusion of fibrous material alters brittle behavior of concrete along with a significant improvement in mechanical properties i.e., toughness, strain and flexural strength. Ordinary Portland cement (OPC) is mainly used as a binding agent in concrete composites. However, current environmental awareness promotes the use of alternative binders i.e., geopolymers, to replace OPC because in OPC production, significant quantity of CO2 is released that creates environmental pollution. Geopolymer concrete composites have been characterized using a wide range of analytical tools including scanning electron microscopy (SEM) and elemental detection X-ray spectroscopy (EDX). Insight into the physicochemical behavior of geopolymers, their constituents and reinforcement with natural polymeric fibers for the making of concrete composites has been gained. Focus has been given to the use of sisal, jute, basalt and glass fibers.

show abstract

Introduction

Rashad

2023

Silica Fume in Geopolymers

View full text Add to dashboard Cite

Efflorescence Control in Calcined Kaolin-Based Geopolymer Using Silica Fume and OPC

Cited by 7 publications

References 30 publications

Review on the Relationship between Nano Modifications of Geopolymer Concrete and Their Structural Characteristics

Review on the Relationship between Nano Modifications of Geopolymer Concrete and Their Structural Characteristics

Geopolymers and Fiber-Reinforced Concrete Composites in Civil Engineering

Introduction

Contact Info

Product

Resources

About