A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Waterborne environment-friendly polyurethane modified emulsified asphalt cold-mixed material and preparation method thereof
The invention discloses a waterborne environment-friendly polyurethane modified emulsified asphalt cold-mixed material and a preparation method thereof. The preparation method comprises the steps of: compositely modifying matrix emulsified asphalt: an emulsified asphalt modifier is slowly added into the matrix emulsified asphalt, the stirring time is 5 min, the stirring rotating speed is 400-500 r/min till the color is uniform and no white floating exists on the surface, and a pre-finished product A is formed; slowly adding waterborne polyurethane into the pre-finished product A while stirring for 10 minutes at the stirring speed of 600-700 r/min to form a polyurethane modified normal-temperature composite emulsion B; mixing and stirring the high-stiffness mixed additive and the aggregate for 20 seconds, adding purified water, and stirring for 20 seconds to form a pre-finished product C; and uniformly spraying the polyurethane modified normal-temperature composite emulsion B onto the pre-finished product C, and stirring for 30 seconds to obtain the water-based environment-friendly polyurethane modified emulsified asphalt cold-mixed material, which has the advantages of high adhesive force, wear resistance, no peeling, balanced rigidity and toughness, simple and diversified processing and high cost performance compared with the traditional modified emulsified asphalt.
本发明公开了一种水性环保聚氨酯改性乳化沥青冷拌料及其制备方法，包括对基质乳化沥青复合改性：将乳化沥青改性剂缓慢加入基质乳化沥青，搅拌时间5min，搅拌转速400‑500r/min，直至色泽均匀、表面无白色漂浮，形成预成品A；将水性聚氨酯缓慢边搅拌边缓慢加入上述预成品A中，搅拌时间为10min，搅拌转速为600‑700r/min，形成聚氨酯改性常温复合乳液B；将高劲度混合添加剂与集料混合搅拌20S，再将净水入，搅拌20S，形成预成品C；将聚氨酯改性常温复合乳液B均匀喷洒于预成品C上，并搅拌30S，制得水性环保聚氨酯改性乳化沥青冷拌料，较传统改性乳化沥青优势在于，粘附力强，耐磨不剥落、刚韧平衡，加工简单多样，性价比高。
Waterborne environment-friendly polyurethane modified emulsified asphalt cold-mixed material and preparation method thereof
The invention discloses a waterborne environment-friendly polyurethane modified emulsified asphalt cold-mixed material and a preparation method thereof. The preparation method comprises the steps of: compositely modifying matrix emulsified asphalt: an emulsified asphalt modifier is slowly added into the matrix emulsified asphalt, the stirring time is 5 min, the stirring rotating speed is 400-500 r/min till the color is uniform and no white floating exists on the surface, and a pre-finished product A is formed; slowly adding waterborne polyurethane into the pre-finished product A while stirring for 10 minutes at the stirring speed of 600-700 r/min to form a polyurethane modified normal-temperature composite emulsion B; mixing and stirring the high-stiffness mixed additive and the aggregate for 20 seconds, adding purified water, and stirring for 20 seconds to form a pre-finished product C; and uniformly spraying the polyurethane modified normal-temperature composite emulsion B onto the pre-finished product C, and stirring for 30 seconds to obtain the water-based environment-friendly polyurethane modified emulsified asphalt cold-mixed material, which has the advantages of high adhesive force, wear resistance, no peeling, balanced rigidity and toughness, simple and diversified processing and high cost performance compared with the traditional modified emulsified asphalt.
本发明公开了一种水性环保聚氨酯改性乳化沥青冷拌料及其制备方法，包括对基质乳化沥青复合改性：将乳化沥青改性剂缓慢加入基质乳化沥青，搅拌时间5min，搅拌转速400‑500r/min，直至色泽均匀、表面无白色漂浮，形成预成品A；将水性聚氨酯缓慢边搅拌边缓慢加入上述预成品A中，搅拌时间为10min，搅拌转速为600‑700r/min，形成聚氨酯改性常温复合乳液B；将高劲度混合添加剂与集料混合搅拌20S，再将净水入，搅拌20S，形成预成品C；将聚氨酯改性常温复合乳液B均匀喷洒于预成品C上，并搅拌30S，制得水性环保聚氨酯改性乳化沥青冷拌料，较传统改性乳化沥青优势在于，粘附力强，耐磨不剥落、刚韧平衡，加工简单多样，性价比高。
Waterborne environment-friendly polyurethane modified emulsified asphalt cold-mixed material and preparation method thereof
一种水性环保聚氨酯改性乳化沥青冷拌料及其制备方法
CAI HAIJUN (author) / WU XINFENG (author) / GU JIANJIAN (author) / WU RUIQI (author) / GAO LIANG (author) / SU SHI (author)
2021-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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