Shrinkage crack

shrinkage crack

[′shriŋ·kij ‚krak]
(geology)
A small crack produced in fine-grained sediment or rock by the loss of contained water during drying or dehydration.
(metallurgy)
An irregular interdendritic crack in a casting caused by unequal contraction or inadequate feeding.

Shrinkage crack

A rift that appears in the surface of building materials such as concrete, masonry, and mortar joints, due to shrinkage.

shrinkage crack

A crack due to restraint of shrinkage.
References in periodicals archive ?
QI have a shrinkage crack at the front of my house and have tried to repair it with white mastic but it does not blend in with the white render.
Plummer and Gostin (1981) studied many examples of mudcracks and synaeresis cracks from the rock record and in laboratory experiments and concluded that no single feature of any shrinkage crack is useful in differentiating between the two.
The model to be proposed is based on the previous modelling of vertical (Chertkov and Ravina 1998) and horizontal (Chertkov and Ravina 1999a, 1999b) shrinkage crack networks in swelling soils.
If you get the workmanship or sequence wrong you will create shrinkage cracks, and ultimately have a leaky pool.
In the application phase of a bike path and pavement, the study demonstrated the importance of using a well-proportioned SCC mix, and more attention to construction practices, to ensure durable pavements and fewer tendencies for shrinkage cracks.
For example, in most new builds and extensions it is common to see shrinkage cracks around windows and doors and at wall and ceiling junctions which are often associated with the drying out of new building materials.
Subaqueously formed shrinkage cracks in clay, Journal of Sedimentary Research 35(2): 348-353.
While their high nutrient content and water-holding capacity otter favourable conditions for agriculture, the formation of shrinkage cracks during drying intensifies the consequences of suboptimal irrigation scheduling.
Among their topics are physical and mechanical properties of natural and man-made fibers, textiles structures, material properties and structural applications of steel fiber reinforced concrete, the role of fiber reinforcement in mitigating shrinkage cracks in concrete, fibrous materials reinforced composites for structural health monitoring, and acoustic behavior of fibrous materials.
Plus there was a tendency to grind the cement into a finer powder than previously, all of which goes to speed up the rate at which the cement sets and leads to a lot more shrinkage cracks.
In the case of drainage requirements, gulley and channel components are installed within a MONILE[R] mortar mixture to ensure optimum durability and resist the formation of shrinkage cracks.
Dormant cracks, D-cracks, shrinkage cracks, stress-corrosion cracks, temperature cracks--whatever the crack type or cause, self-leveling urethane flows and fills most horizontal cracks and cures quickly.