Skip to main content

Surface imperfections

An appearance problem in which individual irregular cavities (often small rounded or hemispherical) are exposed when formwork is removed from a concrete pour is sometimes called: Choose 2
A. honeycombing, B. popouts, C. blowholes, D. dusting, E. flaking, F. crazing, G. bug holes


C. and G. Permeable forms reduce the occurrence of this type of surface imperfection. Large size cavities can affect the concrete's durability.
are-review.blogspot.com

 Resource Tip: Read about all of the surface imperfections listed in this question by reading Avoiding Surface Imperfections in Concrete from Cement Concretes and Aggregates Australia

Comments

Post a Comment

Try These Too!

Moisture content in wood

The amount of shrinkage, weight, strength, and withdrawal resistance of nails is affected by the moisture content in wood. Wood that is grademarked kiln dry has a maximum moisture content of: A. 15% B. 19% C. 25% D. 30% Answer A. 15%. Dry lumber moisture content cannot exceed 19%. ARE 4.0 exam prep: SS
Post a Comment
See the answer »

Cantilevered beam

The bending moment in a cantilevered beam is negative. Which of the following statements are true? A. the top fibers are in compression B. the bottom fibers are in compression C. rebar placement should be either at the top or the bottom D. gravity loads are not a factor for negative moment Answer B. the bottom fibers are in compression in a cantilevered beam, so top fibers are in tension which requires rebar placement at the top to resist tension. ARE 4.0 exam prep: SS
Post a Comment
See the answer »

Wood stairs

In wood stair construction, what is the difference between a carriage and a stringer?! Answer A carriage is the principle support for the treads and risers, whereas the stringer is the finish member (face) that treads and risers terminate against. ARE 4.0 exam prep: BDCS
Post a Comment
See the answer »