Results 51 to 60 of about 13,771 (226)
Study Pembuatan Durable Cement dengan Penambahan Pozzolan Silica Fume
Jurnal Teknik Kimia dan Lingkungan, 2018 Selama ini silica fume dikenal sebagai bahan campuran pembuatan beton karena dapat meningkatkan kuat tekan beton, menurunkan permeabilitas beton dan memiliki ketahanan sulfat yang tinggi.
Nanik Hendrawati +2 more
doaj +1 more source
PENGARUH SUBSTITUSI PASIR POZZOLAN SEBAGAI AGREGAT HALUS TERHADAP KUAT TEKAN, MODULUS ELASTISITAS, DAKTILITAS, ABSORPSI, DAN POLA RETAK BETON MUTU TINGGI [PDF]
, 2016 Beton mutu tinggi merupakan beton dengan kuat tekan lebih besar dari 60 Mpa. Akan tetapi beton mutu tinggi memiliki berat yang besar dan harganya relatif mahal sehingga digunakan pasir pozzolan sebagai substitusi agregat halus.
Nadya Astari
core
Iraqi bentonite as natural pozzolan
Magazine of Civil Engineering, 2022 In this study, Iraqi high-calcium bentonite was used for the first time to prepare natural pozzolan for concrete by the thermal activation method (calcination). Raw bentonite was calcined at 700, 750, 800, 850, 900, and 950°C for 30, 60, 90, and 120 minutes at each temperature.
Al-Hammood, Amer +2 more
openaire +2 more sources
MATEC Web of Conferences, 2017 This study aimed to evaluate the properties of concrete mixes produced mainly of hydrated lime and different types of Pozzolan. This mixture, which is nominated as PozzoLime, is presented as an alternative sustainable binder to replace Portland cement in
Kadum Nahida +2 more
doaj +1 more source
Long-term mechanical properties of lime-pozzolan mortars: The role of amorphous Al2O3 [PDF]
MATEC Web of ConferencesToday, lime-pozzolan mortars are being used in the repair of historic buildings, replacing the lime-cement mortars that were previously used in this practice, but were incompatible with historic mortars.
Vyšvařil Martin +3 more
doaj +1 more source
Advances in Civil Engineering, Volume 2026, Issue 1, 2026.The construction industry significantly contributes to global CO2 emissions, with cement production being a major factor. Concurrently, large quantities of crushed fly ash brick (CFAB) waste accumulate due to manufacturing defects. In this study, CFAB powder was developed as a supplementary cementitious material (SCM) by partially replacing cement in ...
S. Kalaiselvi +5 more
wiley +1 more source
Alkali-reduced Bauxite Residue as Novel SCM
Nordic Concrete Research, 2020 Bauxite residue is a major waste stream available in large volumes globally that can cause risks to the surrounding environment (e.g. ecotoxicity) when disposed and stored by conventional methods.
Danner Tobias +2 more
doaj +1 more source
Study of cement-fly ash paste exposed to sodium sulfate solutions with different concentrations at different temperatures [PDF]
, 2010 When concrete elements are partially exposed to sulfate environment, in the upper part of concrete elements above ground an aquiferous zone containing almost saturated and high pH value (> 12.5) sulfate pore solution will be formed.
De Schutter, Geert +3 more
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Some considerations about the use of lime-cement mortars for building conservation purposes in Portugal : a reprehensible option or a lesser evil? [PDF]
, 2012 Some investigations about conservation actions in historical buildings points out that lime–cement mortars should be avoided and lime–pozzolan mortars should be use instead.
Faria, Joana +2 more
core +1 more source
Advances in Civil Engineering, Volume 2026, Issue 1, 2026.Rapid industrialization and urban growth have driven a rising demand for cement, yet ordinary Portland cement (OPC) production remains energy‐intensive and a major source of CO2 emissions. The partial substitution of OPC with supplementary cementitious materials (SCMs) offers a sustainable route to reduce environmental impact, production costs, and ...
Nancy Mweni Paul +6 more
wiley +1 more source