Post-tensioning with or without bonding of tendons
Bonded post-tensioning In this method, the prestressing steel is placed in ducts and, after stressing, is bonded to the surrounding […]
Post-tensioning with or without bonding of tendons Read Post »
Powers and Wiler Plastometer
The recording plastometer (Powers 1968; Wong et al. 2000) developed by Powers and Wiler appears to be the first attempt
Polytetrafluoroethylene (PTFE) is commonly used in sliding bearings. Why?
The choice of sliding surface of bearings is of vital importance because the sliding surfaces generate frictional forces which are
Polytetrafluoroethylene (PTFE) is commonly used in sliding bearings. Why? Read Post »
Population Demographics of Suspension Bridges
A plot showing the number of bridges for each category of suspension bridge constructed for every year starting with the year
Portland Cements
Portland cement, the most common of the modern cements, is made by carefully blending selected raw materials to produce a finished
Portland-Cement Concrete
Portland-cement concrete is a mixture of portland cement, water, coarse and fine aggregates, and admixtures proportioned to form a plastic mass capable
Porcelain Enamel on Metal
Low-temperature softening glasses must be employed, especially with sheet metal, to avoid the warping and distortion that would occur at high
Porcelain Bibliography
F. H. Norton, Elements of Ceramics, Addison-Wesley Publishing Company, Cambridge, Mass. W. D. Kingery, H. K. Bowen, and D. R. Uhlmann,
Pore structures in hardened concrete
Introduction In the previous section it was rather cavalierly remarked that at setting, `the mix solution is seamlessly carried over