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- W626486519 abstract "MINERALOGICAL ANALYSIS RELIES ON A NUMBER OF INVESTIGATION TECHNIQUES: CHEMICAL ANALYSIS, X-RAY DIFFRACTION, THERMAL METHOD, OPTIC AND ELECTRON MICROSCOPY, THE RESULTS OF WHICH ARE COMPARED. THE MINERALOGICAL ANALYSIS PERMITS TO GO FROM THE CHEMICAL COMPOSITION OF THE MATERIAL TO THE QUANTITATIVE MINERALOGICAL COMPOSITION. TO AVOID LENGTHY CALCULATIONS, A SPECIAL PROGRAM MINERAUX (IRRD 900020) WAS WRITTEN IN FORTRAN IV. IT DIRECTLY PROCESSES THE RESULTS OF THE CHEMICAL ANALYSIS AND OTHER TECHNIQUES ON THE COMPUTER AND GIVES THE QUANTITATIVE COMPOSITION OF THE SAMPLE IN MINERAL SPECIES. A CRITICAL EXAMINATION OF THE DIFFERENT CEMENT PROPORTIONING METHODS IN A HARDENED CONCRETE HAS SHOWN THAT, TO BE RELIABLE, THIS DETERMINATION REQUIRES A COMPLETE CHEMICAL ANALYSIS OF THE FILTRATE OF THE SAMPLE ATTACKED BY A VERY DILUTED STRONG ACID. THIS CHEMICAL ANALYSIS IS, IN FACT, THE BASIS OF THE COMPUTER MINERALOGICAL ANALYSIS WHICH DETERMINES THE QUALITATIVE COMPOSITION A PRIORI. THIS RAPID MINERALOGICAL ANALYSIS THEN DEALS ONLY WITH THE SOLUBILIZED PART OF THE MATERIAL, E.G. LIMESTONE AGGREGATES AND BINDERS. IT ENABLES THE CARBONATION RATE OF THE LATTER TO BE DETERMINED AND THE POSSIBLE AGGRESSION OF CONCRETE BY AN EXTERNAL AGENT TO BE DETECTED. THE MAIN TYPES OF DETERIORATION ARE: CARBONATION, ATTACK BY SULPHATE OR MAGNESIA AND ALKALI-AGGREGATE REACTION." @default.
- W626486519 created "2016-06-24" @default.
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- W626486519 date "1978-10-01" @default.
- W626486519 modified "2023-09-24" @default.
- W626486519 title "MINERALOGICAL ANALYSIS - APPLICATION TO HARDENED CONCRETE IN RELATION TO THE DURABILITY OF STRUCTURES" @default.
- W626486519 hasPublicationYear "1978" @default.
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