Assessment of the Suitability of Ceramic Waste in Geopolymer Composites: An Appraisal

Luhar, Ismail; Luhar, Salmabanu; Abdullah, Mohd Mustafa Al Bakri; Nabiałek, M.; Sandu, Andrei Victor; Szmidla, Janusz; Jurczyńska, Anna; Razak, Rafiza Abd; Aziz, Ikmal Hakem; Jamil, Noorina Hidayu; Deraman, Laila Mardiah

doi:10.3390/ma14123279

Cited by 39 publications

(28 citation statements)

References 139 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The residues were ground and sieved for different sizes 0.42 mm, 0.18 mm, and 0.074 mm. The alkaline solutions were obtained from sodium hydroxide (PA 97%, Synth, Diadema-SP, Brazil), potassium hydroxide (PA 85%, Synth, Diadema-SP, Brazil), and sodium silicate (Na 2 O and SiO 2 = 20-30%, H 2 O = 40-60%, VETEC, Duque de Caxias-RJ, Brazil) with basic pH (11)(12)(13). Ammonium polyacrylate was used as a dispersant (0.5 wt.% Lioperses 511, Miracema-Nuodex Indústria Química Ltd.a, Campinas-SP, Brazil), and ammonium hydroxide (30-32% PA, VETEC, Duque de Caxias-RJ, Brazil) was used to adjust the pH.…”

Section: Methodsmentioning

confidence: 99%

“…The residues of the red ceramic industry have several potentials for reuse; among them stand out the production of traditional ceramics or cementitious materials [7][8][9][10]. Additionally, such residues have the potential to be used as precursors of alkali-activated materials because they are rich in silica and alumina and compounds by a large number of amorphous phases [11]. In recent decades, alkali-activated materials (AAMs) have attracted worldwide attention for their low CO 2 emissions and excellent mechanical and durability properties.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Durability of Sustainable Ceramics Produced by Alkaline Activation of Clay Brick Residue

et al. 2021

View full text Add to dashboard Cite

Alkali-activated materials (AAMs) were produced using residues from the red ceramic industry as a precursor, and sodium hydroxide (NaOH), potassium hydroxide (KOH), and sodium silicate (Na2SiO3) as alkaline activators. The effect of activators and curing conditions on physical-mechanical properties and durability were evaluated. The processing parameters (amount of water and consistency index) and the activation conditions (the activator contents and curing temperature) were defined based on an experimental design getting the flexural rupture module as the response. The durability behavior was evaluated by natural aging, accelerated aging (simulated rain test), exposure to the marine environment (salt fog), and acidic environments (HCl and H2SO4). The results showed that the NaOH- and KOH-activated samples exhibited inferior mechanical behavior than those activated with Na2SiO3. In the durability studies, due to leaching, there was a decrease in mechanical strength when samples are subjected to aggressive exposure conditions. However, the strength values are still higher than the minimum indicated for traditional ceramic applications.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Durability of Sustainable Ceramics Produced by Alkaline Activation of Clay Brick Residue

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Geopolymers are a class of inorganic materials in the form of geopolymer paste, geopolymer mortar, geopolymer concretes, etc., for the construction and infrastructure industry produced through the process of geopolymerization-the alkaline activation of solid alumina-silicate precursors, either as industrial by-products or materials of geological origin at low temperature in alkaline medium [40,41]. Geopoly-meric materials can bring the significant environmental and economic advantages owing to the opening for the incorporation of diverse profuse waste streams sans compromising durability, strength, and the sustainability attributes to an optimum level along with low carbon footprint [41][42][43][44][45][46][47][48][49][50][51][52][53]. The workability, mix design, mechanical characteristics, durability, and micro-structure, etc., of geopolymer composites have recently been studied by researchers [41][42][43][54][55][56][57][58][59].…”

Section: Geopolymeric Materialsmentioning

confidence: 99%

Review on Performance Evaluation of Autonomous Healing of Geopolymer Composites

Luhar

Shaikh

2021

Infrastructures

Self Cite

View full text Add to dashboard Cite

It is a universal fact that concrete is one of the most employed construction materials and hence its exigency is booming at a rocket pace, which in turn, has resulted in a titanic demand of ordinary Portland cement. Regrettably, the production of this essential binder of concrete is not merely found to consume restricted natural resources but also found to be associated with emission of carbon dioxide—a primary greenhouse gas (GHG) which is directly answerable to earth heating, resulting in the gigantic dilemma of global warming. Nowadays, in order to address all these impasses, researchers are attracted to innovative Geopolymer concrete technology. However, crack development of various sizes within the concrete is inevitable irrespective of its kind, mix design, etc., owing to external and internal factors viz., over-loading, exposure to severe environments, shrinkage, or error in design, etc., which need to be sealed otherwise these openings permits CO2, water, fluids, chemicals, harmful gases, etc., to pass through reducing service life and ultimately causing the failure of concrete structures in the long term. That is why instant repairs of these cracks are essential, but manual mends are time-consuming and costly too. Hence, self-healing of cracks is desirable to ease their maintenances and repairs. Self-healing geopolymer concrete (SHGPC) is a revolutionary product extending the solution to all these predicaments. The present manuscript investigates the self-healing ability of geopolymer paste, geopolymer mortar, and geopolymer concrete—a slag-based fiber-reinforced and a variety of other composites that endow with multifunction have also been compared, keeping the constant ratio of water to the binder. Additionally, the feasibility of bacteria in a metakaolin-based geopolymer concrete for self-healing the cracks employing Bacteria-Sporosarcina pasteurii, producing Microbial Carbonate Precipitations (MCP), was taken into account with leakage and the healing process in a precipitation medium. Several self-healing mechanisms, assistances, applications, and challenges of every strategy are accentuated, compared with their impacts as a practicable solution of autogenously-healing mechanisms while active concretes are subjected to deterioration, corrosion, cracking, and degradation have also been reviewed systematically.

show abstract

“…As a result, it is the most used human-made material globally. Numerous varieties of concrete exist [1][2][3][4][5][6][7][8][9][10], of which, light-transmitting concrete (LTC), or translucent or transparent concrete (TC), has drawn significant attention of concrete technologists and global researchers due to its significance, usefulness, and unique properties. Its ability to transmit light not only results in an improvement concerning visibility, but also reduces the light energy demand of buildings [1].…”

Section: Introductionmentioning

confidence: 99%

Light Transmitting Concrete: A Review

Luhar,

Savva

et al. 2021

Buildings

Self Cite

View full text Add to dashboard Cite

Recently, research attention has been drawn to the application of novel, unique, and innovative types of construction materials to fulfil diverse objectives associated with the ground-breaking concept of “Greener Architecture”, in order to improve the overall economic value and quality of construction. Among these revolutionary structural building materials is light-transmitting concrete, also referred to as translucent or transparent concrete. This material is based on the concept of nano-optics, which allows exterior light to transmit through internal spaces in which light elements, namely optical fibres, are incorporated during the material’s manufacture. The current review assesses earlier studies of translucent concrete, focusing on its applications, and the appropriate ratio and arrangement pattern of optical fibres. This study also investigated the light-transmitting, mechanical, thermal, and energy-saving properties of translucent concrete by analysing research conducted during the past decade. However, numerous material restrictions and research gaps were found in the earlier literature on this concrete. The principal restrictions relate to the material’s low material strength and the identification of the optimum ratio of fibres. The main gaps identified among the reviewed research investigations relate to tests aiming to identify the influence of dissimilar ratios of optical fibres on the material’s strength and energy-saving properties. In the current review, we also identify and recommend future areas of research, and provide suggestions to address the existing research gaps. Finally, we review the types of translucent materials, their properties, and their advantages and disadvantages, and provide illustrations and value-added applications. The aim is to promote translucent concrete as an attractive, promising, and innovative building material for the construction industry.

show abstract

Assessment of the Suitability of Ceramic Waste in Geopolymer Composites: An Appraisal

Cited by 39 publications

References 139 publications

Durability of Sustainable Ceramics Produced by Alkaline Activation of Clay Brick Residue

Durability of Sustainable Ceramics Produced by Alkaline Activation of Clay Brick Residue

Review on Performance Evaluation of Autonomous Healing of Geopolymer Composites

Light Transmitting Concrete: A Review

Contact Info

Product

Resources

About