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Recycled asphalt concrete and preparation process thereof
The invention discloses recycled asphalt concrete and a preparation process thereof. The recycled asphalt concrete comprises the following components in parts by weight: 5-7 parts of waste asphalt concrete, 10-15 parts of a new material, 0.2-0.4 part of modified asphalt, 0.1-0.2 part of a gap reducing material, 0.1-0.2 part of a fiber material and 0.05-0.1 part of a regenerant. The preparation process comprises the steps: S01, crushing and sieving waste asphalt concrete blocks, and finally transporting the crushed and sieved waste asphalt concrete blocks to a specified position; S02, stirringand uniformly mixing the corresponding weight parts of the new material, the waste asphalt concrete and the regenerant in a stirring barrel to obtain a first mixed material; S03, adding an gap reducing material and the fiber material into the first mixed material, and drying and stirring to obtain a dried second mixed material; and S04, heating the modified asphalt to 150-180 DEG C, adding the modified asphalt into the second mixture, and stirring to finally obtain the recycled asphalt concrete. The recycled asphalt concrete provided by the invention has good stability in the use process, andthe phenomena of aging and fragmentation of the asphalt concrete after being pressed and trodden are reduced.
本发明公开了一种再生沥青混凝土及其制备工艺。再生沥青混凝土包括如下重量份的组分：废旧沥青混凝土5‑7份、新料10‑15份、改性沥青0.2‑0.4份、减隙材料0.1‑0.2份、纤维材料0.1‑0.2份、再生剂0.05‑0.1份；其制备工艺为：S01、将废旧沥青混凝土块进行粉碎、过筛，最终运输至指定位置；S02、将相应重量份的新料、废旧沥青混凝土和再生剂在搅拌桶内进行搅拌混匀，得到第一混料；S03、向第一混料内加入减隙材料、纤维材料进行烘干搅拌，得到干燥的第二混料；S04、改性沥青加热至150‑180℃，并加入至第二混料内进行搅拌，最终得到再生沥青混凝土。本发明的一种再生沥青混凝土在使用过程中具有良好的稳定性，减轻沥青混凝土被压踏后出现老化、碎裂的现象。
Recycled asphalt concrete and preparation process thereof
The invention discloses recycled asphalt concrete and a preparation process thereof. The recycled asphalt concrete comprises the following components in parts by weight: 5-7 parts of waste asphalt concrete, 10-15 parts of a new material, 0.2-0.4 part of modified asphalt, 0.1-0.2 part of a gap reducing material, 0.1-0.2 part of a fiber material and 0.05-0.1 part of a regenerant. The preparation process comprises the steps: S01, crushing and sieving waste asphalt concrete blocks, and finally transporting the crushed and sieved waste asphalt concrete blocks to a specified position; S02, stirringand uniformly mixing the corresponding weight parts of the new material, the waste asphalt concrete and the regenerant in a stirring barrel to obtain a first mixed material; S03, adding an gap reducing material and the fiber material into the first mixed material, and drying and stirring to obtain a dried second mixed material; and S04, heating the modified asphalt to 150-180 DEG C, adding the modified asphalt into the second mixture, and stirring to finally obtain the recycled asphalt concrete. The recycled asphalt concrete provided by the invention has good stability in the use process, andthe phenomena of aging and fragmentation of the asphalt concrete after being pressed and trodden are reduced.
本发明公开了一种再生沥青混凝土及其制备工艺。再生沥青混凝土包括如下重量份的组分：废旧沥青混凝土5‑7份、新料10‑15份、改性沥青0.2‑0.4份、减隙材料0.1‑0.2份、纤维材料0.1‑0.2份、再生剂0.05‑0.1份；其制备工艺为：S01、将废旧沥青混凝土块进行粉碎、过筛，最终运输至指定位置；S02、将相应重量份的新料、废旧沥青混凝土和再生剂在搅拌桶内进行搅拌混匀，得到第一混料；S03、向第一混料内加入减隙材料、纤维材料进行烘干搅拌，得到干燥的第二混料；S04、改性沥青加热至150‑180℃，并加入至第二混料内进行搅拌，最终得到再生沥青混凝土。本发明的一种再生沥青混凝土在使用过程中具有良好的稳定性，减轻沥青混凝土被压踏后出现老化、碎裂的现象。
Recycled asphalt concrete and preparation process thereof
一种再生沥青混凝土及其制备工艺
QIN KEWEI (author) / GUAN XIAOFANG (author) / XIANG BO (author) / FENG YING (author) / WU CHENCHEN (author) / HUANG QINGLIANG (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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