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Purpose: To verify transmission factors of the high density concrete (HDC) used in modification of an existing radiation shielding for a new linear accelerator and to measure transmission factors of other types of HDC under user beams before shielding construction started. Method and Materials:Six ...
A Method for Predicting L'nT,w for Lightweight Floating Floors Comprising Low Density Flexible Polyurethane Foam on Concrete Supporting Floors Lightweight floating floors of medium density fibreboard supported by a resilient layer of flexible polyurethane foam are increasingly being used in both new bu...
Harmathy et al., “Comparison of Severity of Exposure in ASTM E 119 and ISO 834 Fire Resistance Tests,” Journal of Testing and Evaluation, 15(6): 371-375 (1987) 7 pages. K.F.Mikhaylov—Manual for manufacturing prefabricated reinforced concrete articles, Moscow, Stroyizdat, 1982, pp....
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tall for compression measurements without the glazed surface. As indicated in the characteristics portion of Table 3, the compression strength of Examples 7-9 were over 10,000 lb./sq. in., a factor of over 2½ times the compression strength of concrete (4,000 lb./sq. in.). Similarly,...
A simple approximation is to scale the TVLs from NCRP 151 according relative increase in density. Here we present measured TVLs for heavy concretes of various densities using a built-in shielding test port. Concrete densities tested range from 2.35 g cc(-1) (147 pcf) to 5.6 g cc(-1) ...
The present invention relates to a composite concrete building material comprising cementatious materials; and foam glass aggregates. The cementatious materials may comprise cement, sand and fly ash. The cementatious materials may also comprise other materials, including, for example, reinforcing ...
autoclaved aerated concrete; experimental tests; dry density; compressive strength; flexural strength; elastic modulus; fracture energy; thermal conductivity; eco-mechanical index; green building development1. Introduction In the last years, green buildings and sustainable solutions for the construction ...