| 配方類型： |
EMULSIONS |
| 配方說明： |
Solid Particle Stabilized Asphalt Emulsion |
| 配方組成： |
"Cab-O-Sil" (M-5)/2.9%
Water/43%
Asbestos/.5%
Ba SO4 (200 mesh)/9.7%
"Vinsol" soap
Asphalt/42%-penetration grade about 150
KOH |
| 配制方法： |
1. Premix 25 grams asbestos, 5.5 gm. KOH, 1.25 "Vinsol" soap solution, 260g water Set this aside 2. Mix together in a slow speed mixer (about 50 rpm) 150gm "Cab-O-Sil", 500 gm BaSO4 3. Add 1000 gm water (about 80F) 4. Add 700 gm asphalt-add slowly (about 270F) 5. Add 200 gm water-slowly 6. Add 350 gm asphalt 7. Add 100 gm water 8. Add 350 gm asphalt 9. Add 200 gm water 10. Add 300 gm asphalt 11. Add 200 gm water 12. Add 300 gm asphalt 13. Add 100 gm water 14. Add 200 gm asphalt 15. Add 200 gm water 16. Add asbestos premix prepared in step number 1.
17. Continue mixing for 15 more minutes This emulsion will air dry in about four hours with little tendency toward mud cracking. It has good weather resistance. It does not-emulsify even after 12 hours submersion in water. Average particle size is 10 to 30 microns. |
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