Composition for surfacing lightly trafficked thoroughfares, allowing plant growth to be limited or even completely suppressed

    公开(公告)号:US12195396B2

    公开(公告)日:2025-01-14

    申请号:US17605089

    申请日:2020-04-22

    Applicant: COLAS

    Abstract: Disclosed is a draining composition for a light-traffic road pavement, including: (a) a first granular layer having a percentage of communicating voids ranging 25-50%, including a binder and a granular mixture of which at least 80% by weight, relative to the total weight of the granular mixture, has a granular size distribution range 4-20 mm, the layer having a thickness suitable for the pavement's mechanical strength; (b) a second granular layer having main lower and upper surfaces, the main lower surface resting directly on the first granular matrix and the main upper surface in direct contact with the air, the second granular layer being a granular mixture not bound by a binder and of which at least 80% by weight, relative to the total weight of the granular mixture, has a granular size distribution range 2-14 mm, the second granular layer having a thickness appropriate for water accumulation.

    COMPOSITIONS AND METHODS FOR ROAD SURFACING
    3.
    发明申请

    公开(公告)号:US20200332126A1

    公开(公告)日:2020-10-22

    申请号:US16388304

    申请日:2019-04-18

    Abstract: A composition for sealing and resurfacing a road surface includes a first material having at least a first emulsified asphalt, wherein the first material is applied to the road surface. The composition also includes a second material having a second emulsified asphalt and a driving surface material. The second material is applied to the first material such that the first material and the second material co-cure as a unified material.

    Polyurethane based roadway forming
    6.
    发明授权
    Polyurethane based roadway forming 有权
    聚氨酯基巷道成型

    公开(公告)号:US09284694B2

    公开(公告)日:2016-03-15

    申请号:US14582336

    申请日:2014-12-24

    Abstract: Provided herein are roadways containing polyurethane materials. A roadway includes a base layer of a compacted in situ material and/or a wear layer disposed on the base layer. One or both of these layers may include the polyurethane material to bind other components in the layers and to form more robust and durable roadway structures capable of withstanding operating loads of the roadway. In some embodiments, the polyurethane material is added to the wear layer by mixing in situ soil and/or foreign aggregate with polyurethane material or by dispensing the polyurethane material over the existing partially formed wear layer. The base layer may or may not include a polyurethane material. The type, concentration, distribution, and processing of the polyurethane material in the wear layer may be the same or different than that in the base layer.

    Abstract translation: 本文提供了含有聚氨酯材料的道路。 巷道包括压实的原位材料的基层和/或设置在基层上的耐磨层。 这些层中的一个或两个可以包括聚氨酯材料以结合层中的其它组分,并且形成能够承受巷道的操作载荷的更坚固耐用的道路结构。 在一些实施方案中,通过将现场土壤和/或外来骨料与聚氨酯材料混合或通过在现有的部分形成的耐磨层上分配聚氨酯材料将聚氨酯材料加入到耐磨层中。 基层可以包括或可以不包括聚氨酯材料。 耐磨层中的聚氨酯材料的种类,浓度,分布和加工可以与基层相同或不同。

    Process for the preparation of organic dithiol polysulfides
    8.
    发明授权
    Process for the preparation of organic dithiol polysulfides 失效
    制备有机二硫醇多硫化物的方法

    公开(公告)号:US3862922A

    公开(公告)日:1975-01-28

    申请号:US39644473

    申请日:1973-09-12

    Abstract: A process for the preparation of organic dithiol polysulfides with a molecular weight of between 500 and 10,000, characterized by the fact that these products are obtained when a dihalogenated organic derivative and hydrogen sulfide react simultaneously with an alkaline polysulfide solution. New products are obtained by this process, using dichlorodiethyl formal and dichlorodibutyl formal. These dithiol polysulfides react with sulfur to form either plasticized sulfur, with many possible applications in the coating field, or polysulfide polymers, one of the applications of which is the modification of bitumens.

    Abstract translation: 一种制备分子量在500至10,000之间的有机二硫醇多硫化物的方法,其特征在于当二卤代有机衍生物和硫化氢与碱性多硫化物溶液同时反应时获得这些产物。 通过该方法获得新产物,使用二氯二乙基甲缩醛和二氯正丁基甲醛。 这些二硫醇多硫化物与硫反应以形成增塑硫,在涂层领域有许多可能的应用,或多硫化物聚合物,其应用之一是改性沥青。

    Low residual spray paving coating and method

    公开(公告)号:US11053645B2

    公开(公告)日:2021-07-06

    申请号:US16059247

    申请日:2018-08-09

    Inventor: Orville Spray

    Abstract: A paving mixture for application to a surface and a method for the same. The mixture comprises a binding material layer applied to the surface to form a base layer on the surface, and an aggregate material layer applied on top of the binding material layer. The binding material layer can be applied in an amount of at most 0.125 gallons/yd2. The aggregate material layer contains an asphalt mixture that provides a road surface. The aggregate material layer and the binding material layer can be combined on the surface within 30 seconds of application of the binding material layer. Additionally, multiple paving mixtures may be applied to the surface.

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