BACKGROUND Construction painters have not been studied well in terms of their hazards exposure. The objective of this study was to evaluate the exposure levels of total volatile organic compounds (TVOCs) for painters in the construction industry. METHODS Activity-specific personal air samplings were carried out in three waterproofing activities [polyurethane (PU), asphalt, and cement mortar] ...

The article analyses the changes in durability of waterproofing terraces, with particular emphasis on properties materials as a result utility factors. It was analysed influence tensile above-mentioned their resistance against fatigue resulting from movements substrates caused by temperature surface terraces coverings. adopted range horizontal plate 0 to 2 mm at variable temperatures: – 15°C an...

THE EFFECT OF REVERSE FLOTATION METHOD ON SILICA SAND AS WATERPROOFING MORTAR. Waterproof fabrication mortar cement by silica sand using reverse flotation (RFS) method was evaluated waterproof absorption coefficient, compressive strength test, attractive and contact angle. RFS is used to replace agent aggregate reduce cost. The aims of this experiment are know the process, ratio between with mo...

OBJECTIVES The purpose of the study was (i) to identify the carcinogenic agents that may cause confounding when studying the exposure-response relationship between bitumen fume exposure and cancer among roofing membrane-manufacturing workers and roofers and (ii) to assess exposures to the identified carcinogens and bitumen fume in roofing membrane manufacturing and roofing in Finland and Denmar...

Temperature is one of the primary environmental drivers distribution species, and particularly high temperatures challenge physiological processes by disruption cellular homoeostasis. This exerts selection on organisms to maintain homoeostasis adaptive and/or behavioural responses. The social spider Stegodyphus dumicola occurs across several climate zones in Southern Africa, populations experie...