The first step in construction planning is the Soil Test. It is to understand the suitability for the proposed construction work. Soil should be well tested in the soil testing companies in UAE to give excellent performance and it is responsible for allowing the stresses coming from the structure. If not tested properly, any structure could be damaged.
To decide the quality of soil for building constructions, various soil tests are performed. The moisture content or water content of the soil is an important parameter that could be determined by the oven drying method, while specific gravity could be determined by the pycnometer method. Atterberg limits are to measure the critical water content of fine-grained soil.
Black light inspection is the test suitable for the detection of certain of oil films & other transparent films that are not detectable under white light or natural light. In an area that is blacked out to white light, inspect all visible accessible surface with the aid of a flood-type ultraviolet lamp. Fluorescence of the surface indicates the presents of contaminates. The nature of contamination can be determined subjecting a simple of contaminants that has been transferred to a clean quarts microscope slide, to infrared analysis.
Copper sulfate test is recommended for the detection of metallic iron or iron oxide on the surface of austenitic 200 & 300 series, the precipitation hardening alloys, & the ferritic 400 series stainless steel containing 16% chromium or more. It is not recommended for the martensitic & low chromium ferritic stainless steel of the 400 series since the test will show a positive reaction on these materials. This test is hypersensitive & should be used & interpreted only be personal familiar with its limitation.