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海南省几个民族自治县(市)公路工区,新铺和大中修油路,所采用的沥青大部分是从茂名购买。根据几年来的路用和沥青材料试验情况,有这样的体会。 购买茂名沥青有两种,一是固体沥青油10号;一是液体(经粘度仪试验粘度大于500秒,因此考虑粘结性不能用粘度仪,而用针入度仪测定)沥青针入度值在90～213这个范围,从沥青的鉴别标号可定为100～200号油。根据《公路柔性路面设计规范》规定,这种油完全符合沥青路面的拌和法和层铺法施工要求。但是根据海南几个县公路工区的施工条件、地区气候、矿料级配、地下水等情况,100～200号油不掺配固体沥青直接路用效果是不好的。1984年底通什市公
Hainan Province, several ethnic autonomous counties (cities) highway work area, new shop and medium-sized repair oil Road, most of the asphalt used to buy from Maoming. According to several years of road and asphalt material test situation, have such an experience. There are two ways to buy Maoming asphalt, one is solid asphalt oil No. 10; one is liquid (the viscosity of which is greater than 500 seconds after being tested by viscometer; therefore, the viscoelasticity can not be measured with a viscometer but with a penetration meter) Values in the range of 90 ~ 213, from the bitumen identification number can be set as 100 to 200 oil. According to “Highway Flexible Pavement Design Code” provides that this oil in full compliance with the asphalt pavement mixing method and layer shop construction requirements. However, according to the construction conditions of highway work areas in several counties of Hainan Province, the regional climate, the gradation of mineral materials and the groundwater, the direct use of 100 ~ 200 oil without solid asphalt is not good. By the end of 1984 Tongshi City public