A hydraulic cement made by burning a mixture of clay and limestone in a rotary kiln and pulverizing the resulting clinker into a very fine powder.

Joseph Aspdin patented an artificial cement he named "Portland Cement". What year?

Density of an unreinforced concrete

What type of portland cement is employed in the construction of massive concrete structures such as gravity dams?

What type of portland cement that is used in contact with water with sulfate present?

The inherent strength of concrete depends on the quality of its?

Aggregate having a particle size distribution characterized by uniform grading.

Aggregate consisting of sand having a particle size smaller than 1/4 in. (6.4 mm)

An Admixture that slows the setting of a concrete, mortar or plaster mix in order to allow more time for placing and working the mix.

An admixture for reducing the amount of mixing water required for the desired workability of a concrete or mortar mix.

A textured finish given to a fresh plaster or concrete surface by troweling with a circular, overlapping motion.

Formation of hollow bumps of different sizes on concrete due to entrapped air under finished concrete surface

Cause of Blistering

Blistering Prevention/ Correction

The following are the desired properties of hardened concrete except one.

Identify: A

Identify: C

The process of eliminating voids other than entrained air within newly placed concrete and ensuring close contact of the concrete with form surfaces and embedded reinforcement

The separation of an excessively wet or overvibrated concrete mix into horizontal layers with increasingly lighter material migrating toward the top.