Results 11 to 20 of about 4,274 (169)

Pengendalian Persediaan Pozzolan di PT Semen Padang [PDF]

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   +2 more sources

Evaluation the pozzolanic reactivity of sonochemically fabricated nano natural pozzolan

open access: yesUltrasonics Sonochemistry, 2012
Natural pozzolans are appropriate supplementary cementitious materials in cement and concrete industry. A simple sonochemical method was developed to synthesize nanostructures of natural pozzolan. Chemical composition, crystallinity, morphology and reactivity of the natural pozzolan samples were compared before and after the sonochemical process, by ...
Ali Reza Pourkhorshidi   +1 more
exaly   +3 more sources

Conception of eco-friendly cement based on natural pozzolan to improve rheological behavior of concrete

open access: yesJournal of Building Materials and Structures, 2020
The pozzolan of Beni- Saf region (North-West Algeria) is a natural material of volcanic origin with an ability to react with lime in the presence of water and to form compounds with binding properties.
Sabria Malika Mansour, Youcef Ghernouti
doaj   +2 more sources

Physical properties and reactivity of pozzolans, and their influence on the properties of lime–pozzolan pastes [PDF]

open access: yesMaterials and Structures/Materiaux Et Constructions, 2010
This paper studies how pozzolan properties including particle size, specific surface, chemical and mineral composition, amorphousness and water demand, affect their reactivity as well as the strength of lime–pozzolan pastes. Reactivity was evaluated with chemical, mechanical and mineralogical methods.
Sara Pavia
exaly   +4 more sources

Advanced Applications of Pozzolan-Derived Silica: Hydrophobic Agent Synthesis [PDF]

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   +2 more sources

Thermal Properties of Lightweight Cement–Sand–Natural Pozzolan Moroccan Composites [PDF]

open access: yesEPJ Web of Conferences
Thermal insulation is a key research topic due to its role in improving passive thermal comfort in buildings and reducing carbon emissions. This study investigates the development of a low-cost, thermally insulating concrete incorporating natural ...
Kichouhi Mohamed   +4 more
doaj   +2 more sources

An approach for predicting the stability of vertical cuts in cohesionless soils above the water table [PDF]

open access: yes, 2013
Temporary vertical excavations in cohesionless (granular soils) pose a problem for conventional ‘two-phase’ soil mechanics theory since non-zero collapse height is not predicted using the classical ‘dry/saturated’ shear strength criterion, given that ...
Stanier, Samuel A, Tarantino, Alessandro
core   +4 more sources

Improvement of Pozzolanic Properties of Oil Palm Boiler Ash Through Heat Treatment [PDF]

open access: yesE3S Web of Conferences, 2023
This paper presents the improvement of pozzolanic properties of oil palm boiler ash (OPBA) through heat treatment. The OPBA was obtained from oil palm mill in Pahang, Malaysia.
Liew Yu Xuan   +4 more
doaj   +1 more source

Experimental Study of The Addition of Palm Fiber (Arenga Pinnata) as Fiber Against The Compressive Strength of Pozzolan Bricks

open access: yesJurnal Teknik Sipil dan Perencanaan, 2022
. Brick is a building material widely used as a construction material for walls and fences, one of which uses Pozzolan brick. Pozzolan brick is made from Trass, lime, or cement.
Mahdika Putra Nanda
doaj   +1 more source

Experimental study of MICP-treated sand enhanced by pozzolan

open access: yesRock and Soil Mechanics, 2022
In order to improve the reinforcement effect of microbially induced calcium carbonate precipitation (MICP) technology on sand, the test of MICP-treated sand reinforced by pozzolan was designed and carried out considering the porous structure and activity
XIONG Yu   +4 more
doaj   +1 more source

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