Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Semi-rigid pavement and preparation method thereof
The invention provides a preparation method of a semi-rigid pavement. The method comprises the following steps: sequentially paving and rolling an asphalt mixture to obtain a large-gap asphalt mixture pavement; and pouring epoxy mortar into large gaps of the asphalt mixture pavement, and curing to obtain a semi-rigid pavement. The asphalt mixture is prepared from the following raw materials in percentage by mass: 90 to 95 percent of coarse aggregate, 3.5 to 4.5 percent of cementing material, 0.01 to 0.3 percent of fiber and 0.2 to 6.4 percent of mineral powder, and the particle size of the coarse aggregate is 4.75 to 13.2 mm. A large amount of large-particle-size coarse aggregates are added into the asphalt mixture, the coarse aggregates are mutually embedded and extruded to form a skeleton structure with large gaps, and epoxy mortar is poured into the gaps for curing reaction after the asphalt mixture is paved and rolled to form a whole, so that the rigidity and rut resistance of the asphalt can be greatly improved, and the thermal stability is improved.
本发明提供了一种半刚性路面的制备方法，包括以下步骤：将沥青混合料依次进行摊铺和碾压，得到大空隙的沥青混合料路面；将环氧砂浆浇筑到所述沥青混合料路面的大空隙中，固化后得到半刚性路面；按质量百分比计，所述沥青混合料由包括以下组分的原料制备得到：90～95％粗集料，3.5～4.5％胶结料，0.01～0.3％纤维和0.2～6.4％矿粉；所述粗集料的粒径为4.75～13.2mm。本发明在沥青混合料中添加大量的大粒径粗集料，这些粗集料相互嵌挤形成具有大空隙的骨架结构，在沥青混合料摊铺、碾压后将环氧砂浆浇筑进空隙中进行固化反应，形成一个整体，可极大提高沥青的刚度和抗车辙能力，从而提高热稳定性。
Semi-rigid pavement and preparation method thereof
The invention provides a preparation method of a semi-rigid pavement. The method comprises the following steps: sequentially paving and rolling an asphalt mixture to obtain a large-gap asphalt mixture pavement; and pouring epoxy mortar into large gaps of the asphalt mixture pavement, and curing to obtain a semi-rigid pavement. The asphalt mixture is prepared from the following raw materials in percentage by mass: 90 to 95 percent of coarse aggregate, 3.5 to 4.5 percent of cementing material, 0.01 to 0.3 percent of fiber and 0.2 to 6.4 percent of mineral powder, and the particle size of the coarse aggregate is 4.75 to 13.2 mm. A large amount of large-particle-size coarse aggregates are added into the asphalt mixture, the coarse aggregates are mutually embedded and extruded to form a skeleton structure with large gaps, and epoxy mortar is poured into the gaps for curing reaction after the asphalt mixture is paved and rolled to form a whole, so that the rigidity and rut resistance of the asphalt can be greatly improved, and the thermal stability is improved.
本发明提供了一种半刚性路面的制备方法，包括以下步骤：将沥青混合料依次进行摊铺和碾压，得到大空隙的沥青混合料路面；将环氧砂浆浇筑到所述沥青混合料路面的大空隙中，固化后得到半刚性路面；按质量百分比计，所述沥青混合料由包括以下组分的原料制备得到：90～95％粗集料，3.5～4.5％胶结料，0.01～0.3％纤维和0.2～6.4％矿粉；所述粗集料的粒径为4.75～13.2mm。本发明在沥青混合料中添加大量的大粒径粗集料，这些粗集料相互嵌挤形成具有大空隙的骨架结构，在沥青混合料摊铺、碾压后将环氧砂浆浇筑进空隙中进行固化反应，形成一个整体，可极大提高沥青的刚度和抗车辙能力，从而提高热稳定性。
Semi-rigid pavement and preparation method thereof
一种半刚性路面及其制备方法
ZHOU RUMING (Autor:in) / ZHOU SI (Autor:in) / SHI CAIQIN (Autor:in) / ZHANG HAIDONG (Autor:in) / ZHENG BENHUI (Autor:in)
07.09.2021
Patent
Elektronische Ressource
Chinesisch
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