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Rheological tests on cement paste were used to successfully select the type and dosage of mineral admixtures that improved concrete workability. Among the six different mineral admixtures tested, the ultra fine fly ash (UFFA), was determined to give the
We estimated the effect of shade trees on the summertime electricity use of 640 single-family homes in Sacramento, California. Results show that trees on the west and south sides of a house reduce summertime electricity use, whereas trees on the north side
A set of 209 dwellings that represent 80 % of U.S. housing stock was used to generate frequenc distributions of residential ventilation rates. The set of homes is based on an anal sis of the 1997 U.S. Department of Energ s Residential Energ Consumption
It has been known for decades that people die from inhaling fire gases and that visible smoke presents challenges to people trying to escape from fires in homes, transportation vehicles, and commercial buildings. Within the current decade, there has been
Climate change, increased wildland fuels, and residential development patterns in fire-prone areas have combined to make wildfire-risk mitigation an important public policy issue. One approach to wildfire-risk mitigation is to encourage homeowners to use