Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of rubber modified asphalt mixture
The invention relates to the technical field of road engineering, and discloses a preparation method of a rubber modified asphalt mixture. The method comprises the following steps: S1, obtaining rubber powder, and adding the rubber powder into matrix asphalt to form a cementing material; S2, weighing 100-120 parts by weight of cementing material and 30-40 parts by weight of aggregate, and mixing the cementing material and the aggregate; S3, stirring the cementing material and the aggregate in a stirring cylinder for 60-80 seconds; S4, weighing 3-10 parts by weight of mineral powder, and addingthe mineral powder into the stirring cylinder; and S5, stirring the mineral powder, cementing material and aggregate mixture for 35-55 seconds to obtain the rubber modified asphalt mixture. Accordingto the invention, the rubber modifier is mixed in the matrix asphalt, so that the waste tires are fully utilized, solid waste pollution is reduced, energy is saved, and the environment is protected;the softening point of the matrix asphalt is increased, the ductility is reduced, and the needle penetration is reduced; the high-low temperature performance is improved; and the temperature sensitivity is reduced, the aging performance is enhanced, and the cohesiveness of the modified asphalt material is enhanced.
本发明涉及道路工程技术领域，公开了一种橡胶改性沥青混合料的制备方法，包括步骤：S1、获取橡胶粉，将所述橡胶粉添加到基质沥青中，形成胶结料；S2、按重量份称取胶结料100‑120份、骨料30‑40份，拌和所述胶结料和骨料；S3、在搅拌缸中搅拌所述胶结料和骨料60‑80秒；S4、按重量份称取矿粉3‑10份，在所述搅拌缸中加入所述矿粉；S5、搅拌所述矿粉、胶结料和骨料混合物35‑55秒，得到所述橡胶改性沥青混合料。本发明通过在基质沥青中混合橡胶改性剂，充分利用废旧轮胎，减少固体废弃物污染，节能环保；使得基质沥青的软化点增高，延度减低，针入度降低；高低温性能得以改善；温度敏感性降低，老化性能增强，增强了改性沥青材料粘结性。
Preparation method of rubber modified asphalt mixture
The invention relates to the technical field of road engineering, and discloses a preparation method of a rubber modified asphalt mixture. The method comprises the following steps: S1, obtaining rubber powder, and adding the rubber powder into matrix asphalt to form a cementing material; S2, weighing 100-120 parts by weight of cementing material and 30-40 parts by weight of aggregate, and mixing the cementing material and the aggregate; S3, stirring the cementing material and the aggregate in a stirring cylinder for 60-80 seconds; S4, weighing 3-10 parts by weight of mineral powder, and addingthe mineral powder into the stirring cylinder; and S5, stirring the mineral powder, cementing material and aggregate mixture for 35-55 seconds to obtain the rubber modified asphalt mixture. Accordingto the invention, the rubber modifier is mixed in the matrix asphalt, so that the waste tires are fully utilized, solid waste pollution is reduced, energy is saved, and the environment is protected;the softening point of the matrix asphalt is increased, the ductility is reduced, and the needle penetration is reduced; the high-low temperature performance is improved; and the temperature sensitivity is reduced, the aging performance is enhanced, and the cohesiveness of the modified asphalt material is enhanced.
本发明涉及道路工程技术领域，公开了一种橡胶改性沥青混合料的制备方法，包括步骤：S1、获取橡胶粉，将所述橡胶粉添加到基质沥青中，形成胶结料；S2、按重量份称取胶结料100‑120份、骨料30‑40份，拌和所述胶结料和骨料；S3、在搅拌缸中搅拌所述胶结料和骨料60‑80秒；S4、按重量份称取矿粉3‑10份，在所述搅拌缸中加入所述矿粉；S5、搅拌所述矿粉、胶结料和骨料混合物35‑55秒，得到所述橡胶改性沥青混合料。本发明通过在基质沥青中混合橡胶改性剂，充分利用废旧轮胎，减少固体废弃物污染，节能环保；使得基质沥青的软化点增高，延度减低，针入度降低；高低温性能得以改善；温度敏感性降低，老化性能增强，增强了改性沥青材料粘结性。
Preparation method of rubber modified asphalt mixture
一种橡胶改性沥青混合料的制备方法
TU LIANGLIANG (Autor:in) / GONG YING (Autor:in) / BAI LONGWEI (Autor:in) / CHEN KANG (Autor:in) / CAI RONGXING (Autor:in) / WANG JIAN (Autor:in)
17.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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