Microbial Applications in Construction Materials

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One-part geopolymer mortars provide an alternative to cementitious materials by using dry activators and industrial by-products. This study evaluated a multi-precursor matrix containing slag, fly ash, ceramic powder, red mud, and 5% MgO, reinforced with polyvinyl alcohol (PVA), basalt, or micro-steel fibers at 0.4% an…

BACKGROUND: The growing need for sustainable farming methods has led to increased efforts to understand plant-beneficial microbes that can serve as alternatives to chemical fertilizers and pesticides. Among these, bacteria from the Pseudomonas chlororaphis group have emerged as particularly promising candidates due to…

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Sürdürülebilirlik, günümüzde yapı sektöründe giderek daha fazla önem kazanmaktadır. Son yıllarda inşaat sektörü, çevresel etkileri azaltmak ve yapı malzemelerinin üretiminde kullanılan doğal kaynak tüketimini minimize etmek amacıyla sürdürülebilir ve çevre dostu malzeme alternatiflerine yönelmektedir. Bu araştırmada,…

This study presents an experimental framework to isolate intrinsic biopolymer bonding from strength gains induced by densification in stabilized high-plasticity clay. Xanthan gum (XG) and κ-carrageenan (CG) were evaluated using two preparation methods: Method A, in which biopolymer replaces an equivalent soil mass to…

Introduction/Objective: The present work describes the synthesis, urease, and lipase inhibition, and Structure-Activity Relationship (SAR) studies of some novel benzimidazolonebridged heterocyclic compounds, including piperazine, thiophene, furan, thiosemicarbazide, thiadiazole, and triazole moieties. At the same time…

Introduction/purpose: Many studies have reported a notable reduction in the shear strength of sandy soils when fine fractions are present, resulting in soils with poor geotechnical properties. With the lack of suitable soils for construction, it is now imperative to alter the properties of soil to make it suitable for…

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The magnificent designs of nature never cease to amaze us. Explaining how the self-healing material mechanisms work and developing new design proposals could shed light on scientific and engineering innovations in various fields, especially in the biomedical, agricultural, environmental, construction, and defense sect…

Problematic fine-grained soils exhibit low strength and inadequate durability, highlighting the need for sustainable stabilization using eco-friendly binders. This study examined the strength development and durability of a natural CH soil (NSs) stabilized with fly ash (FA) based geopolymer exposed to sulfate attack a…

Biochar (BCh), a carbon-rich byproduct derived from the pyrolysis of biomass, is conventionally employed as a soil amendment in agricultural contexts but remains unexplored for geotechnical soil stabilization. This study pioneers the application of BCh synthesized from Agaricus bisporus Mushroom Spent Compost (MSC) vi…