Reciprocal vertical angles
The height differences between control points are often explicitly required in engineering surveying work. Even when they are not, they […]
Rates only contracts
These contracts call for tenderers to quote only their rates per unit of work of different kinds. They are used for
Recent measures to alleviate sub-contract disputes
The problems between main and sub-contractors were one of the areas to benefit most from Part II of the UK Governments
Recent measures to alleviate sub-contract disputes Read Post »
Reasons for failure of prestressing steel
Premature failure of prestressing steel in prestressed concrete structures is usually induced by corrosion. The most obvious type of failure
Reactive polymer matrix composites Introduction
These materials are quite different from polymer-modified mortars in that they do not contain any hydraulic cement. They consist of
Reactive polymer matrix composites Application
Since there is a very wide range of systems available, it is very important that the right one is chosen
Reactive polymer matrix composites Water absorption
Reactive polymer matrix composite materials generally have a high resistance to water transmission, although the extent depends very much on
Reactive polymer matrix composites Water absorption Read Post »
Reactive polymer matrix composites Creep
These materials are visco-elastic in nature and thus, over time, may undergo creep and stress relaxation even at ambient temperatures.
Reactive polymer matrix Thermal properties
In general the coefficients of thermal expansion for unfilled (lower modulus) and filled (higher modulus) products are ~40-100 and 20-40