The Olympic Dam archaeological salvage program covers an area of 600 km2 and contains more than 16,500 archaeological sites, most of which are open scatters of stone artefacts on linear sand dunes. Optically stimulated luminescence (OSL) dating offers an opportunity to date recent phases of dune movement and stability, and to provide a chronology for archaeological material on and in the sand b...

abstract the mosaic art as a decorative element in buildings enjoys several thousand years of age in egypt, mesopotamia, greece, rome and byzantium and is widely usedbut technically speaking, the earliest mosaic forms have poorly made. they were made by insertion of fruit cores or broken pottery pieces in the wet mud mortar of walls. later, the art evolved rapidly and extensively used for archi...

We propose a new type of concrete for the attenuation of elastic waves induced by dynamic excitation. In this metamaterial, which we call metaconcrete, the stone, sand, and gravel aggregates of standard concrete are replaced with spherical inclusions consisting of a heavy metal core coated with a soft outer layer. These engineered aggregates can be tuned so that particular frequencies of a prop...

The industrial production of lime generates greenhouse gases, which contributes to increase the global warming. Therefore, present study evaluated feasibility replacing by ornamental rock waste (ORW) as a by-product related stone industry, and developed cost-effective mortars. These new low-costing mortars are intended fresh fluid paste coatings be applied on walls mechanized projection techniq...

This paper investigates the physicomechanical properties of mortar containing high volume of fly ash (FA) as partial replacement of cement in presence of copolymer latexes. Portland cement (PC) was partially replaced with 0, 10, 20, 30 50, and 60% FA. Copolymer latexes were used based on 2-hydroxyethyl acrylate (2-HEA) and 2-hydroxymethylacrylate (2-HEMA). Testing included workability, setting ...

Radiocarbon dating of mortars is a method for absolute historical mortared stone structures. Successful mortar studies have answered chronological questions, while other revealed that samples can complications and contaminants. These cause inconclusive results even with present state-of-the-art techniques. Previous research shows adequate proper sampling fundamental importance conclusive radioc...