Black, tarry stools. blood in urine or stools. cough or hoarseness. fever or chills. lower back or side pain. painful or difficult urination. pinpoint red spots on skin. unusual bleeding or bruising.
Builder's Sand. Builder's Sand, also known as Plasterer's, Mason, or Bricklayer's Sand is a finer grade sand with smaller particles. It's often mixed with water and cement to make mortar for laying bricks/blocks. Ï scale - 3 to 2. Size range - 125â250 Âµm (0.0049â0.010 in)
Sand casting: Casting method characterized by the use of sand as a mold material. Sand is typically mixed with a bonding agent such as clay and moistened with water or other liquid to create suitable mold strength and plasticity. (Sand prepared in this way is also known as green sand.