JOINT SAND COMPOSITION
作者： Jens Sonderberg Frederiksen
DOI:
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摘要: A joint sand composition which comprises (such as quartz sand), a water-soluble polymer polyvinyl alcohol, acrylate, polyacrylamide, alginic acid) and an organic hydrocolloid such psyllium. The may further comprise liquid, glycol or glycerol, cement. is for filling gaps between pavers provides flexible when wet, resistant to rain erosion.
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