Results 11 to 20 of about 4,199 (222)

Pengendalian Persediaan Pozzolan di PT Semen Padang

open access: yesJurnal Optimasi Sistem Industri, 2016
Inventory of raw materials is the most important thing to produce the product. Inventory control of the raw materials quantityalso refers to the production process at the factory.
Prima Fithri, Annise Sindikia
doaj   +3 more sources

Advanced Applications of Pozzolan-Derived Silica: Hydrophobic Agent Synthesis

open access: yesJurnal Rekayasa Kimia & Lingkungan
The Sumatera Barat province of Indonesia, particularly Padang Pariaman Regency, is rich in pozzolan, a natural resource characterized by high silica (SiO₂) and alumina (Al₂O₃) content. Despite its abundance, pozzolan remains underutilized, primarily used
Erda Rahmilaila Desfitri   +4 more
doaj   +3 more sources

A Study of the Hydration of Lime-Pozzolan Binders

open access: yesJournal of Thermal Analysis and Calorimetry, 1998
DTA/TG and TG/DTG thermal studies and XRD investigations were carried out on pastes of lime-pozzolan binders to examine the relative hydration process. The binders were prepared with two natural pozzolans and hydrated lime, mixed together in different proportions. The main hydrated phases formed in the pastes are calcium silicate hydrate (CSH) and mono-
UBBRIACO, Pietro, TASSELLI F.
openaire   +5 more sources

Study Pembuatan Durable Cement dengan Penambahan Pozzolan Silica Fume [PDF]

open access: yesJurnal 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   +2 more sources

Influence of thermal activation of natural pozzolan on the mechanical behavior of cement pastes [PDF]

open access: yesJournal of Materials and Engineering Structures, 2022
This experimental work focused on the thermal activation of natural pozzolan (NP) from the town of Beni-Saf, in order to improveits reactivity. The present study consists of using natural pozzolan as partial replacement of ordinary Portland cement, with ...
souad MECHEBEK   +2 more
doaj   +1 more source

Pozzolans: A review

open access: yesEngineering and Applied Science Research, 2022
Engineering and Applied Science Research, 49, 4, 495 ...
Jhonatan A. Becerra-Duitama   +1 more
openaire   +2 more sources

Study of Geopolymer Composites Based on Volcanic Ash, Fly Ash, Pozzolan, Metakaolin and Mining Tailing

open access: yesBuildings, 2022
This work studies the feasibility to employ a combination of volcanic ash (natural waste) with different raw materials in the production of geopolymers: fly ash and mining tailing (considered hazardous solid waste), natural pozzolan, and metakaolin. This
Rossibel Churata   +6 more
doaj   +1 more source

Thermal characteristics study of light aggregate concrete of the middle Atlas pozzolana

open access: yesMATEC Web of Conferences, 2018
We present in this work an experimental study of the thermomechanical characterization of pozzolan (volcanic rock widespread in the region of Azrou in the Middle Atlas in Morocco).
Bouyahyaoui A.   +3 more
doaj   +2 more sources

Effects of FeNi3 Nanoparticles and Coal Slag on Mechanical and Durability Properties of Concrete against Acidic Environments

open access: yesAdvances in Civil Engineering, 2023
In recent years, natural pozzolans have been proposed as a way to improve the mechanical and biocompatible properties of concrete. This study investigated the effects of different amounts of nanoparticles, coal slag pozzolan, and their combination on the
Hossein Rezayt Khargerdi   +4 more
doaj   +1 more source

Strength performance and life cycle assessment of high-volume low-grade kaolin clay pozzolan concrete: A Ghanaian scenario

open access: yesCase Studies in Construction Materials, 2022
Concrete, the highest consumed construction material in the world is known to be the third leading contributor to carbon dioxide and other greenhouse gas emissions (GHG) aside from energy generation and transportation.
Mark Bediako, Luca Valentini
doaj   +1 more source

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