| 摘要 |
A joint sealant composition that is compatible with Portland cement and with asphalt including, on a weight basis, from 57% to 75% of an aromatic petroleum tar boiling between 220 DEG C. and 650 DEG C., from 5% to 18% of an oil-soluble ground rubber, from 10% to 17% of inorganic filler, and from 3% to 6.5% PVC with the combined weight of PVC not exceeding 23% of the composition.
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