Quiz Prefinals CMT

______ is a building material consisting of a hard, ________ inert particulate substance, know as _______ (usually sand and _____), that is bonded together by _____ and water. ________ are also added to enhance the properties of the concrete mix.

Properties of Freshly Mixed Concrete:

__________ is defined as the ease with which the concrete can be mixed, transported, and placed in a homogenous state.

Properties of Freshly Mixed Concrete:

Workability of concrete is affected by factors such as:

(1)

(2)

(3)

(4)

Clue: Abbreviation WUMS

Properties of Freshly Mixed Concrete:

The _____ ____ _____ is an empirical test that measures workability of fresh concrete

There are 4 classification of this test:

(1)

(2)

(3)

(4)

Clue: Abbreviation TSCZ

Properties of Freshly Mixed Concrete:

________ is the separation of ______ aggregates from ______ mass.

Reasons for segregation of concrete:

(1)

(2)

(3)

Clue: Abbreviation IDI

Properties of Freshly Mixed Concrete:

Concrete should be free from ________. Segregated concrete results to:

(1)

(2)

(3)

Clue: Abbreviation HDL

Properties of Freshly Mixed Concrete:

____ separation of water from concrete mix. This renders concrete ______ and _______ _______ of hardened concrete

Properties of Freshly Mixed Concrete:

Excess water causes __________. It is formed after ________, the formation of crust of weak _______ or _______ _______ on the concrete surface

Properties of Concrete in Hardened State:

(1) ability of concrete to resist breaking or cracking.

(2) Hardened concrete should have _____ _____ _____ to withstand heavy loads

(3) ______ ______ of concrete is taken as _/_ of its compressive strength.

(4) Concrete should have enough __________ ________ to resist deformation due to loading.

Properties of Concrete in Hardened State:

(1) ability of concrete to resist weathering actions, (2)_______ ______ and (3)________ while maintaining its desired engineering properties