Define arachnologist. arachnologist synonyms, arachnologist pronunciation, arachnologist translation, English dictionary definition of arachnologist. n. The branch of zoology that deals with spiders and other arachnids. arâ²achÂ·noÂ·logâ²iÂ·cal adj. arâ²achÂ·nolâ²oÂ·gist n
1 Answer from this member: Heaving is usually the result of frost, tree roots or expansive soils getting wet. Heaving floors will often be accompanied by cracks, thought slabs may heave with or without cracking.When heaving occurs, it can form a trip hazard and may weaken the structure of your home.Walls may be out of plumb as a result of the heaved slabs. Answer from this member: Heaving is usually the result of frost, tree roots or expansive soils getting wet. Heaving floors will often be accompanied by cracks, thought slabs may heave with or without cracking.
In a shear slump the top portion of the concrete shears off and slips sideways. In a collapse slump the concrete collapses completely. Only a true slump is of any use in the test. If a shear or collapse slump is achieved, a fresh sample should be taken and the test repeated.A collapse slump will generally mean that the mix is too wet or that it is a high workability mix, for which the flow test (see separate entry) is more appropriate.n a shear slump the top portion of the concrete shears off and slips sideways. In a collapse slump the concrete collapses completely. Only a true slump is of any use in the test. If a shear or collapse slump is achieved, a fresh sample should be taken and the test repeated.