Скачать или смотреть check quality of sand on site

in this video we talk about how to checq quality of sand on site in construction :
1- CLAY TEST: SAND KO BOTTLE MAIN HILAO PHIR BETH JAYE IF clay is present wo upper aajaegi and sand niche beth jaegi.
2- ORGANIC IMPURITIES: add sand to a solution of castic soda(max use) or sodium hydro oxide and colour is change brown it mean impurities hain.
3- PRESENCE OF SALT: take little sand and taste it if taste saltiness
4- PRESENCE OF EARTH MATTER: take pinch of sand and rub it agar daag aajae hath pet oh earthy matter hain.
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