| 摘要 |
FIELD: construction. ^ SUBSTANCE: asphalt mineral mixture includes asphalt binder, mineral aggregate and mineral filler. Road oil asphalt is used as asphalt binder. Crushed sand of dense rocks with particle size of 0.16-5.00 mm is used as mineral aggregate. Mixture of phosphogypsum with particle size of less than 0.16 mm and limestone mineral powder is used as mineral filler. Ratio of components is as follows, wt %: asphalt binder - 6.5-7.0; crushed sand of dense rocks - 74.3; phosphogypsum - 3.7-3.9; limestone mineral powder - the rest. ^ EFFECT: obtained mixture has increased strength, and heat and crack resistance. ^ 2 tbl, 1 ex |
