Concrete Cracking and Volume Changes Quiz

Decrease in homogeneity, honeycombing, reduction in strength, deterioration, and reduction in durability.

Excessive water content in the mix, use of high water-cement ratio, poor graded aggregates.

Appearance of water on the surface after concrete placement and compaction but before it has set.

<p>Weak and non-uniform top surface, channeled bleeding resulting in porous concrete, laitance reducing cement content.</p> Signup and view all the answers

<p>Increase in fineness of cement and fine particles, reducing water content, increasing C3A, CaCl2, and alkali content, use of pozzolana, air entrainment.</p> Signup and view all the answers

<p>Volume of water released per unit surface of fresh concrete or per unit volume of concrete or initial water.</p> Signup and view all the answers

<p>Rate of release of water or subsidence of the surface.</p> Signup and view all the answers

<p>Period elapsed from placing until bleeding stops.</p> Signup and view all the answers

<p>Consistency and cohesiveness, which are oppositely influenced by changing specific variables.</p> Signup and view all the answers

<p>Surface cracks due to rapid moisture loss, leading to reduced durability and aesthetics.</p> Signup and view all the answers