Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"calcium aluminate cement"”.
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Processing-property characteristics of a polymer-cement composite
… morphology and mechanical attributes of hardened calcium aluminate cement-poly(vinyl) alcohol (CAC-PVA) composites. Effects of cement particle size and polymer molecular weight were also investigated.
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Acid resistance of sewer pipe concrete
… commonly encountered in South African sewers. Calcium sulphate, which precipitates in a sulphuric acid solution and masks further attack, is eliminated simulating the constant dissolution of the precipitate at the average daily sewage level region and loosely attached precipitate in the …
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An Investigation of the Rheology of Reactive and Nonreactive Highly Filled Polymer Systems
… polymer phases were studied in addition to two calcium aluminate cement-polymer systems of technological interest. The relaxation modulus of the three model reactive systems showed distinguishable signatures of modulus growth characteristic of the active stiffening mechanism in each case. The …
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Preparation and characterization of new porous ceramic filters for hot gas clean-up
… elements were successfully fabricated from calcium aluminate cement, calcined fireclay aggregate, and organic pore formers using refractory concrete casting techniques. Methods used to characterize the porous ceramic filter elements included determination of pore size and distribution, …
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Fundamental Understanding of NOx Sequestration Capacity And Pathways in Nano-TiO2 Engineered Cementitious Materials
… of titania (TiO2) nanoparticles into cementitious materials. Air purification by TiO2-based cementitious materials occurs by photocatalysts that capture nitrogen oxide species (NOx) from the atmosphere, then oxidizing them into nitrite and nitrate species. Because nitrite- and …
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Composition and microstructure of concrete mixtures subjected to biogenic acid corrosion and their role in corrosion prediction of concrete outfall sewers
… entails simultaneous destruction of the calcium hydroxide (CH) in the hydrated cement paste (HCP) and substituting a larger molecule of calcium sulphate into the concrete matrix thus causing pressure and spalling of the adjacent concrete and aggregate particles. In addition, the calcium …
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Biogenic acid corrosion of sewer concretes with different binders: in-situ and model studies, with advancement of the life factor prediction method
… have approached this technique using Portland Cement (PC) based systems with Supplementary Cementitious Materials (SCMs). However, other binder systems such as Calcium Aluminate Cement (CAC) and Calcium Sulpho-Aluminate cement (CSA) have been less studied, despite showing higher potential in …
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Studium objemových změn pojivových silikátových směsí
… změn malt a betonů. Důraz je kladen na cementové samonivelační podlahové hmoty s počáteční kompenzací smrštění. V praktické části je práce věnována rozvoji prototypního měřícího systému určeného pro bezkontaktní snímání objemových změn hydratujících silikátových směsí. S využitím nové …