Results 31 to 40 of about 15,071 (234)
Materiales de Construccion, 2022 The determination of delayed ettringite formation (DEF) in hardened concrete relying simply on the identification of ettringite by electron microscopy or powder X-ray diffractometry can be imperfect because of the high risk of missing other possible ...
Y. Ando +3 more
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Investigation of Premature Distress Around Joints in PCC Pavements: Parts I & II [PDF]
, 2012 Some of the Indiana concrete pavements constructed within the last 10-20 years have shown signs of premature deterioration, especially in the areas adjacent to the longitudinal and transverse joints.
Arribas-Colón, Maria del Mar +3 more
core +2 more sources
Influence of calcium sulphoaluminoferrite on the cement stone structure [PDF]
E3S Web of Conferences, 2020 Usually to obtain expansive cements sulphoaluminate clinker or mix aluminate clinker with calcium sulphates (gypsum, hemihydrate, anhydrate) are used. This paper deals with the composition and properties of solid solution of calcium sulphoaluminoferrite.
Samchenko Svetlana, Zorin Dmitriy
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Synchrotron Radiation Pair Distribution Function Analysis of Gels in Cements [PDF]
, 2017 The analysis of atomic ordering in a nanocrystalline phase with small particle sizes, below 5 nm, is intrinsically complicated because of the lack of long-range order.
Cuesta-Garcia, Ana Maria +6 more
core +4 more sources
Physicochemical properties of ettringite/meta-ettringite for thermal energy storage: Review
Solar Energy Materials and Solar Cells, 2019 Abstract The cost of materials is one of main obstacles for the development of thermochemical energy storage. Compared with traditional inorganic salt hydrates, a mineral named ettringite can easily overcome this limit thanks to its large resource from cementitious materials.
B. Chen +5 more
openaire +2 more sources
Effects of Ettringite Formation on the Stability of Cement-Treated Sediments
ResourcesThis study explores the stabilization of dredged sediments classified as lean clay (CL) using hydrated lime, type III Portland cement, and compaction. While quicklime is commonly used in practice, this research explores alternative calcium-based binders ...
Inácio Soares Ribeiro +2 more
doaj +1 more source
Possibilities of Sulphate Elimination from Mine Water [PDF]
Acta Montanistica Slovaca, 2004 The issue of acid water (or AMD) is well known in the world for some centuries. In the Eastern Slovakia, the most acid surface water occurs in the area of old mine Smolník, which is closed and submerged for 15 years.
Heviánková Silvie +2 more
doaj
Rietveld Quantitative Phase Analysis of Oil Well Cement: in Situ Hydration Study at 150 Bars and 150 °C [PDF]
, 2019 Oil and gas well cements are multimineral materials that hydrate under high pressure and temperature. Their overall reactivity at early ages is studied by a number of techniques including through the use of the consistometer.
Cuesta-Garcia, Ana Maria +5 more
core +6 more sources
Comparative kinetics study on carbonation of ettringite and meta-ettringite based materials
Cement and Concrete Research, 2020 Abstract The use of ettringite-based materials for thermochemical heat energy storage has attracted researchers' attention in recent years since ettringite has advantages like low material cost and high energy storage density (~500 kWh/m3). However, carbonation, which modifies its structure and reduces the capacity of energy storage, is an important ...
Chen, Bao +5 more
openaire +1 more source
BuildingsTo apply the cementitious capillary crystalline waterproof materials (CCCWs) in real engineering practice, the mechanical properties and related mechanism of cement after adding CCCW are investigated in this study.
Zhonglin Li +4 more
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