Key words: silver, material, light mass of concrete, aggregate, recycling, waste water sludge
.This Research objective of this research is to investigate educational pressure values are getting pressure of light mass concrete using sludge wastewater treatment plant the company's colors. U. r. Chemical in bangplee, samutprakarn zone came as gross material, educational, physical and chemical properties of sewage sludge by Microwave Digestion sample preparation method using sand-cement ratio. 1: 2: 4 water quantity and use, respectively, start at 50% of the weight of the weld material. When mixed according to the ratio then brought to curing humidity control under the age 7 and 14 days after the sample cube curing curing aging. Compression Test according to ASTM D 1633.3 per 1 batch experiments prior to test water absorption strengths density leakage of heavy metals to himself.
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