Phase composition estimates by X-ray powder diffraction and Rietveld analysis are becoming more widely used in the cement industry. The ASTM C01.23 Compositional Analysis subcommittee developed test method C 1365 Standard Test for ‘Determination of the Proportion of Phases in Portland Cement and Portland-Cement Clinker Using X-Ray Powder Diffraction Analysis.’ A round-robin analysis involving 1...

background and aims. it is important to evaluate the effects of endodontic materials on tooth structures to avoid endodontic treatment failure. the aim of the present study was to investigate the effect of mineral trioxide aggregates (mta) and portland cement (pc) on fracture resistance of dentin. materials and methods. thirty-six freshly extracted human single-rooted premolar teeth were select...

introduction: the purpose of this study was to compare the ability of proroot mineral trioxide aggregate (pmta) and root mineral trioxide aggregate (rmta) as root-end filling materials, and portland cement (pc) to prevent bacterial leakage through filled root end cavities. materials and methods: fifty-one extracted human single rooted teeth were cleaned and shaped using a step back technique. t...

This study aimed to explore the use of additives in soil–cement mixtures that have undergone a wetting-drying cycle. In total, two types soil were used, granitic and lateritic, which are widely used road base construction Katingan area, Central Kalimantan, Indonesia. The cement was ordinary Portland type I, while additive utilized for commercial purposes, predominantly contained CaCl2. research...

Abstract The utilization of locally available concrete waste for producing recycled aggregates is recognized as one the most sustainable ways satisfying growing demand production. However, quality depends on its origin and it may significantly differ from structure to another. Knowing chemical composition parent crucial determining or verifying raw materials. For this reason, pre-demolition str...