Results 51 to 60 of about 411 (188)

Modification to Optimise the Use of Agricultural Waste (MSA and SCBA) as Partial Cement Replacements Using Reactivity Indices for Concrete Strength Prediction

open access: yesAdvances in Materials Science and Engineering, Volume 2025, Issue 1, 2025.
The cement industry contributes significantly to global carbon emissions, necessitating a transition towards a net‐zero carbon footprint for the industry. This study examines the feasibility of combining two types of agricultural waste, maize straw ash (MSA) and sugarcane bagasse ash (SCBA), as a sustainable partial cement replacement in concrete ...
Adekunle O. Aliu   +2 more
wiley   +1 more source

Stabilization of artificial organic soil at room temperature using blended lime zeolite

open access: yes, 2013
Organic content in soil is believed to inhibit formation of reaction products in lime stabilization which resulted in low gain of strength when dealing with organic soils.
Chan, T. W.   +3 more
core   +1 more source

Plant responses to urban gradients: Extinction, plasticity, adaptation

open access: yesJournal of Ecology, Volume 112, Issue 12, Page 2861-2875, December 2024.
Herbaceous plants often change their morphology in response to urban conditions: grass cutting, altered soils, warmer temperatures and being surrounded by tightly‐packed buildings. These changes are sometimes hereditary, which suggests that city management and planning affect the ability of plants to survive and evolve in urban environments.
Alejandro Sotillo   +4 more
wiley   +1 more source

Kombinasi Mikroba dan Pozzolan Untuk Self – Healing Beton

open access: yes, 2020
Perbaikan retak mikro pada struktur yang bersentuhan dengan air dan tanah, sangat sulit dilakukan dan membutuhkan biaya yang besar. Solusi permasalahan ini biasanya dilakukan dengan injeksi. Akan tetapi, metode ini dirasa kurang efisien.
Annisa, Rahmdina
core  

Effect of high‐range water reducer and W/C ratio on the fresh and mechanical properties of fiber‐reinforced natural zeolite SCC

open access: yesStructural Concrete, Volume 25, Issue 5, Page 4075-4102, October 2024.
Abstract The present study aims to investigate how the use of high‐range water reducer (HRWR) and variations in water/cement (W/C) ratio affect the properties of self‐consolidating concrete (SCC) while taking into account different proportions of polypropylene fibers (PF) and natural zeolite (NZ). A total of 28 samples were cast and analyzed.
Arash K. Pour   +2 more
wiley   +1 more source

Innovations in the Cement Industry: Advancing Towards Sustainable Concrete Production

open access: yesJurnal Rekayasa Kimia & Lingkungan
Slag, an artificial pozzolan derived from the by-product of metal ore smelting, exhibits notable richness in active silica and alumina. This investigation scrutinizes the influence of slag as a clinker substitute on cement quality. The study explores the
Herliati Rahman, Muhammad Rizqy F
doaj   +1 more source

EFFECT OF SODIUM SILICATE TO SODIUM HYDROXIDE RATIOS ON DURABILITY OF GEOPOLYMER MORTARS CONTAINING NATURAL AND ARTIFICIAL POZZOLANS [PDF]

open access: yesCeramics - Silikaty, 2017
This study aims to provide the experimental data on the sulphate and acid performance of geopolymer mortar containing pozzolanic materials such as fly ash (FA), ground granulated blast furnace slag (GGBS) and natural zeolite (NZ). The alkaline solution was the combination of sodium silicate and sodium hydroxide solution with the ratio (Na ₂SiO₃/NaOH ...
openaire   +3 more sources

Present Status and Perspectives of Graphene and Graphene‐related Materials in Cultural Heritage

open access: yesAdvanced Functional Materials, Volume 34, Issue 13, March 25, 2024.
The conservation and restoration of cultural heritage necessitates unprecedented solutions against natural aging and degradation. Graphene and graphene‐related materials (GRMs) have unique characteristics and properties and could provide novel opportunities. This review aims to elucidate how specific characteristics of these materials can be applied to
Erica Galvagno   +10 more
wiley   +1 more source

PREDICTING THE STRENGTH DEVELOPMENT OF DIFFERENT POZZOLAN CEMENTS BY ARTIFICIAL NEURAL NETWORKS [PDF]

open access: yes, 2009
Bu çalışma, çimento üretiminde kullanılan mineral katkılarda en uygun kullanım oranının belirlenmesi için yapılmıştır. Laboratuvarda farklı kaynaklardan sağlanan doğal zeolit, tras, volkanik tüf, uçucu kül ve yüksek fırın cürufu katkıları, çimento ...
Cenk Karakurt   +2 more
core  

New perspectives on carbon reinforced concrete structures—Why new composites need new design strategies

open access: yesCivil Engineering Design, Volume 5, Issue 5-6, Page 67-94, January 2024.
Abstract In civil engineering, carbon is typically regarded as a modern material to serve as reinforcement in concrete structures. Compared to steel reinforcement, it features two substantial benefits: It is not sensitive to corrosion, and has an enormously increased tensile strength.
Manfred Curbach   +34 more
wiley   +1 more source

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