Abstract Studies on original mortars can greatly assist archaeological interpretations, as elucidating the composition of such gives clues origin raw materials, manufacturing technology, and construction phases a site. This article presents multi-analytical characterisation 24 plasters from Żejtun Roman Villa, Malta, to support hypotheses history The samples, belonging at least three distinct i...

In this paper, the effects of carbonation on pore structure of blended pozzolan cement pastes were investigated. Ordinary Portland cement OPC was partially replaced with ground palm oil fuel ash POA , ground rice husk ash RHA and classified fine fly ash FA . The strength, total porosity, specific surface area, and pore size distribution were tested. In general, incorporation of pozzolans increa...

This study presents the strength development and durability of heat non-heat-cured geopolymer mortars (GMs) produced using metakaolin (MK), ground granulated blast-furnace slag (GGBFS), silica fume (SF), calcined perlite (GCP), raw (RP), potassium hydroxide (KOH), sodium metasilicate (Na2SiO3), standard sand, tap water. An optimal combination MK with various pozzolans constant solid/liquid alka...

Portland cement concrete is the most commonly used construction material in world for decades. However, searches technology are remaining growing to meet particular properties related its strength, durability, and sustainability issue. Thus, several types of have been developed enhance performance. Most modern contain supplementary cementitious materials (SCMs) as a partial replacement cement. ...

The objective of this work was to assess the use biomass fly ash (BFA) as cement replacement material or an alkalinity source in high volume mortar and concrete. Mortar formulations were prepared with different types replacement: from thermal power plants, BFA, a blend two pozzolans, small amounts BFA or/and hydrated lime (HL). tested both fresh hardened state. by ashes led decrease mechanical ...

Underlying fabrics can change the appearance, function and quality of the garment, and also add so much longevity of the garment. Nowadays, with the increasing use of various types of fabrics in the garment industry, their resistance to bagging is of great importance with the aim of determining the effectiveness of textiles under various forces. The current paper investigated the effect of unde...

For several decades, class F fly ash has been an attractive supplementary cementitious material, at least in part, due to its ability reduce Portland cement consumption and mitigate alkali-silica reactions concrete. However, availability is becoming uncertain as the energy industry decommissions coal burning power plants it transitions renewable production. This situation creates a need identif...