explain pre-stressed concrete that is post-tensioned and properties like heat and ordinary portland cement explain short...
Sketch the rate of heat as a function of time for an ordinary Portland cement. Label each stage on the graph. Specify the name of each stage and approximate time/duration. Explain the chemical/physical processes at each stage. Mark initial and final set on the graph
Explain how Portland Cement Concrete (PCC) pavements differ from Asphalt Concrete (AC) pavements in the following aspects: Structure; Materials; Traffic Load Resistance; and Life and Economy (in a general sense)
A post-tensioned member with simply support span cover length equal 18 m, the section properties is already calculated as shown below, assume indoor condition with 0-1.35 the initial stress is estimated foi -1024 N/mm2 was apply in pre-stressing tendon of low-relaxation steel on area Aps 2100 mm2 all the tendons are stressed simultaneously. The shape of the tendon along the member was straight with eccentricity equal to 276. Anchorage draw-in is 9mm Use the following problem data: ws.-19 KN/m ;...
2. Long-term Potentiation is a process that strengthens the transmission of a single synapse in a circuit. This is achieved when pre-synaptic cells and post-synaptic cells fire action potentials at the same time. Usually multiple pre-synaptic cells synapse onto one post-synaptic cell, increasing the probability of inducing an action potential in the post- synaptic cell. You may need to refer to your textbooks or online resources for this question, as we do not cover this in explicit detail in class....
Trans-Pacific Industry & Technology Company Trans-Pacific Industry & Technology (TPIT), Inc. is a diversified industrial company. The Company owns businesses providing products & services to the energy, transportation, chemical, and construction sectors. The energy segment operates as an oil and natural gas contract drilling company the United States. The energy segment acquires, explores, develops, and produces oil and natural gas properties primarily located in Oklahoma and Texas, as well as in Arkansas, Colorado, Kansas, Louisiana, Mississippi, Montana, New Mexico, North...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...