Structural Breakdown of Cement Pastes at Constant Rate of Shear
نویسندگان
چکیده
منابع مشابه
Structural studies on hydrating cement pastes
The development of the mesoscopic material structure during the hydration of ordinary Portland cement paste is studied by small-angle neutron scattering. Results on the time dependence of radii of gyration (Guinier region) and exponents (Porod region) are given and discussed. Introduction Building materials like hardened cement are heterogeneous. Their useful properties (as strength, porosity, ...
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Introduction Cement is the most abundantly used man made material on the planet, accounting for a 40 Billion USD market in the US alone [1]. Widespread use of cement includes applications in oil well casings, roadways, buildings, and even as a bone graft technology for the treatment of osteoporosis[2,3]. As cements role as the foundation of our infrastructure broadens, demand for higher strengt...
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In this paper, the correlation of reflection loss measured by an ultrasonic shear wave reflection method and the microstructure in cement-based material is investigated. Three cement pastes (Portland cement type I) with different water-cement ratios (0.35, 0.50 and 0.60) cured at 25 °C were examined. The ultrasonic shear wave reflection factor (WRF) was measured by the wave reflection technique...
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ژورنال
عنوان ژورنال: Nature
سال: 1955
ISSN: 0028-0836,1476-4687
DOI: 10.1038/175166a0