A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for widening rural highway pavement in pluvial area
The invention relates to a construction method for widening a rural highway pavement in a rainy area, which comprises the following steps: the material components, density and water content of a widened section roadbed are the same as those of a same horizontal layer of an old roadbed, holes are drilled in the middle of the side surface of a cement concrete layer of the old roadbed at intervals in the longitudinal direction, and steel bars are planted at intervals of 40-50cm; then uniformly arranging a layer of SBS anti-cracking paste along the seam; a rubber stress absorption layer with the thickness of 1-1.5 cm is paved on the upper end face of the new road cement concrete layer and the upper end face of the old road cement concrete layer; a graded RAP material, aggregate, mineral powder, new asphalt and a regenerant material are subjected to hot-state mixing, then an asphalt concrete surface layer located at the upper end of the rubber stress absorbing layer is laid, and the thickness ranges from 5 cm to 8 cm. Water damage caused by rainwater is prevented, damage to joints is delayed, the probability of cracks is reduced, and the use performance and durability of the pavement are improved.
本发明涉及一种多雨地区农村公路路面加宽施工方法，包括如下步骤，加宽段路基的材料组分、密度和含水率应与旧路基的同水平层的材料组分、密度和含水率相同，旧路水泥混凝土层的侧面中部纵路向呈间隔距离钻孔植筋，相邻植筋间距40～50cm，而后沿接缝处均匀布置一层SBS防裂贴；对新、旧路水泥混凝土层上端面摊铺一层1～1.5cm厚橡胶应力吸收层；用级配RAP物料、骨料、矿粉与新沥青、再生剂材料进行热态拌合，然后铺筑位于橡胶应力吸收层上端的沥青混凝土面层，厚度5～8cm。本发明防止雨水造成的水损害，延缓接缝处损坏，减少裂缝发生的几率，提高了路面的使用性能和耐久性量。
Construction method for widening rural highway pavement in pluvial area
The invention relates to a construction method for widening a rural highway pavement in a rainy area, which comprises the following steps: the material components, density and water content of a widened section roadbed are the same as those of a same horizontal layer of an old roadbed, holes are drilled in the middle of the side surface of a cement concrete layer of the old roadbed at intervals in the longitudinal direction, and steel bars are planted at intervals of 40-50cm; then uniformly arranging a layer of SBS anti-cracking paste along the seam; a rubber stress absorption layer with the thickness of 1-1.5 cm is paved on the upper end face of the new road cement concrete layer and the upper end face of the old road cement concrete layer; a graded RAP material, aggregate, mineral powder, new asphalt and a regenerant material are subjected to hot-state mixing, then an asphalt concrete surface layer located at the upper end of the rubber stress absorbing layer is laid, and the thickness ranges from 5 cm to 8 cm. Water damage caused by rainwater is prevented, damage to joints is delayed, the probability of cracks is reduced, and the use performance and durability of the pavement are improved.
本发明涉及一种多雨地区农村公路路面加宽施工方法，包括如下步骤，加宽段路基的材料组分、密度和含水率应与旧路基的同水平层的材料组分、密度和含水率相同，旧路水泥混凝土层的侧面中部纵路向呈间隔距离钻孔植筋，相邻植筋间距40～50cm，而后沿接缝处均匀布置一层SBS防裂贴；对新、旧路水泥混凝土层上端面摊铺一层1～1.5cm厚橡胶应力吸收层；用级配RAP物料、骨料、矿粉与新沥青、再生剂材料进行热态拌合，然后铺筑位于橡胶应力吸收层上端的沥青混凝土面层，厚度5～8cm。本发明防止雨水造成的水损害，延缓接缝处损坏，减少裂缝发生的几率，提高了路面的使用性能和耐久性量。
Construction method for widening rural highway pavement in pluvial area
一种多雨地区农村公路路面加宽施工方法
GU DEWEI (author) / LIU ZHAOXIN (author) / YU XIN (author) / ZHENG BAOZHU (author) / WANG LU (author)
2023-08-04
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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