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.
Concrete has a rougher texture than screed because it contains aggregate and stones â as well as sand and cement. These small stones are typically 20mm or less and are easily visable in the concrete when it is liquid. This is what makes concrete the stronger material. Screed is a type of mortar. It is a smoother mixture made from sand and cement, a soil-type substance and it does not have the gravelly aggregate, the maximum grain size is around 4mm for a dry screed. This allows for a finer grain appearance when compared to concrete in its liquid form.