Results 61 to 70 of about 18,605 (255)
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
Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.This study explores the partial replacement of ordinary Portland cement (OPC) with a composite of eggshell powder (ESP) and wheat straw ash (WSA) in C‐25 concrete, focusing on mechanical performance and durability. Cement was replaced with varying proportions of ESP and WSA, and the concrete mix was prepared following ACI guidelines.
Abdulsemad Jemal Jema +2 more
wiley +1 more source
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
Lime/pozzolan/geopolymer systems: Performance in pastes and mortars
, 2021 Use of lime as construction material is limited mainly by low initial strength. These properties can be improved by adding pozzolanic materials, but the evolution of the reaction usually needs older ages than 7 days.
A. R. Villca +6 more
semanticscholar +1 more source
Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.The properties of fly and bottom ashes produced by Morupule power stations in Botswana are analysed for their pozzolanicity. Furthermore, the influence of physical, chemical and microstructural properties of the ashes on the performance of compressive strength of fly ash–based blended cement and geopolymer mortar was evaluated.
Damilola O. Oyejobi +4 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
PENGARUH PENGGANTIAN SEBAGIAN SEMEN DENGAN ABU POZZOLAN TERHADAP KARAKTERISTIK TEKAN DAN ABSORBSI BETON MUTU TINGGI [PDF]
, 2016 Penggunaan semen dalam campuran beton mutu tinggi sangatlah besar jumlahnya. Semen sebagai bahan pengikat dalam campuran beton mutu tinggi dapat dipenggantian sebagian dengan bahan mineral lainnya yang mengandung unsur SiO2, AlO3, Fe2O3, dan CaO seperti
Afzal Mustaqim DM
core
Journal of Engineering, Volume 2026, Issue 1, 2026.Agrostone panels, popularly used for interior walls in construction, are usually made from sustainable agricultural waste such as bagasse as filler and glass fiber as reinforcement in a binder of pumice, MgO, and MgCl2 solutions. The present work has gone ahead of one step by adding rice husk and bamboo fiber, which are abundantly available in Ethiopia,
Addisu Negash Ali +4 more
wiley +1 more source
MATEC Web of Conferences, 2018 The benefits of using mineral additive as a partial replacement for cement in heavyweight concrete are discussed. This paper presents the strength development and temperature distribution of concrete using Class F of natural pozzolan (PU) sourced from ...
Van Lam Tang +5 more
doaj +1 more source