Results 91 to 100 of about 3,478 (197)

Pozzolana Cement: Developing and Marketing a New Cement Additive in Ghana

, 2013
Due to a growing population and the high cost of building materials (among other challenges), housing problems had become more and more urgent — it became obvious that alternatives to Portland cement, the main building material for construction, had to ...
Atuahene-Gima, Kwaku, Afful-Kwaw, Patricia Akua   +1 more
core   +5 more sources

Subgrade Stabilization for Flexible Pavements Employing Recycled Asphalt and Pozzolana

Civil engineering and architecture
In the study carried out by the National Institute of Statistics and Informatics (INEI), construction works generated 41.9% of Peru's GDP. 9% of the GDP in Peru, of which provinces such as Huancayo allocated 50 million to the execution of 172 road ...
Roberto Pizarro, Karely Sherly Alcantara Gamboa, A. Ochoa, Rando Porras Olarte   +3 more
semanticscholar   +1 more source

The use of non-destructive tests to estimate Self-compacting concrete compressive strength

MATEC Web of Conferences, 2018
Until now, there are few studies on the effect of mineral admixtures on correlation between compressive strength and ultrasonic pulse velocity for concrete.
Djamila Boukhelkhal, Mohamed Guendouz
doaj   +2 more sources

COMPARISON OF STRENGTH AND DURABILITY OF CONCRETES MADE WITH SULFATE-RESISTANT PORTLAND CEMENT AND PORTLAND CEMENT WITH POZZOLANA ADDITIVE

e-GFOS, 2019
In this study, a comparison of the strength and durability of concrete with sulfate-resistant cement and cement with pozzolana additive was performed.
Sergii Kroviakov, Mykhailo Zavoloka, Lidia Dudnik, Vitalii Kryzhanovskyi   +3 more
doaj   +1 more source

Study of the Use of Oxygenated Water as a Non-Toxic Molecule Model for Catalytic Testing of Pozzolana-PN and Iron-Based NOx Reducing Catalysts

American Journal of Polymer Science and Technology
During previous catalytic tests on the reducing power of NOx catalysts based on pozzolana and PN-black citric acid polymer, it was found that the use of the NO2 model molecule poses a significant health and environmental risk.
Rabeharitsara Tahina, Ny Itokiana Mandimbimiarana, Raobijaona Baholy, Hdr Ratsimba Hanitriniaina, Randriana Fortuné, Rakotomamonjy Pierre   +5 more
semanticscholar   +1 more source

Physical and chemical properties of fly ash based Portland Pozzolana cement

, 2013
This project is aimed to study the Physical and Chemical properties of fly ash based Portland pozzolana cement manufactured by Tokyo cement (lanka) PLC. Basics of cement, fly ash, pozzolana and physical and chemical properties of cement have been studied
Weerakoon, WMNR, Jayawardane, DLNB, Ukwatta, UPAS, Pathirana, CK   +3 more
core   +1 more source

ACTIVATION OF RED KAOLIN CLAY AS A POZZOLANIC MATERIAL

Al-Qadisiyah Journal for Engineering Science, 2011
This work included two stages; in the first stage the optimum burning temperature to convert red kaolin clay to metakaolin was investigated. The red kaolin was burnt in a different temperature (800, 850, 900, 950, 1000, and 1050) ºC for one hour.
Ali K. Ibrahim
doaj  

Archaeometric Investigation of Artificial Stone Materials from the Theatrum Marcelli (Rome, Italy)

Heritage
This study illustrates the results of minero-petrographic and microchemical investigations of artificial stone materials (mortars, plasters, and bricks) taken from the Theatrum Marcelli (Rome, Italy).
Maria Aantonietta Zicarelli, Michela Ricca, Maria Francesca Alberghina, Salvatore Schiavone, Mauro Francesco La Russa, Luciana Randazzo   +5 more
doaj   +1 more source

Use of Processed Biomass Ash as a Sustainable Pozzolana

Current Science, 2019
The industrial waste generated from sugar production, i.e. bagasse is further used as a biofuel. This generates a huge amount (44,000 tonnes/day) of waste in the form of sugarcane bagasse ash (SCBA). Asreceived boiler SCBA shows lower performance in terms of pozzolanic characteristics.
Vasudha D. Katare, Mangesh V. Madurwar
openaire   +1 more source

Resistance of Phosphogypsum Cement Pozzolanic Compositions against the Influence of Water

Medžiagotyra, 2011
The reprocessing of freshly removed extractive hemihydrate phosphogypsum into hydraulic composite phosphogypsum cement pozzolana (PGCP) binder using mechanical activation is analyzed in this work.
Sergejus GAIDUČIS, Jadvyga ŽVIRONAITĖ, Romualdas MAČIULAITIS, Grigorij JAKOVLEV   +3 more
doaj   +1 more source