Asphalt No. 30 | Asphalt drilling fluid treatment agent | Oxidized asphaltQingzhou Tianyi Chemical Co., Ltd

Asphalt pavement is a pavement structure that uses asphalt materials as binders, and cable asphalt manufacturers combine minerals with different underlying and laying layers. Natural asphalt pavement is divided into two primary types based on strength principles: density and embedded; Divided into laminated and mixed according to construction skills; According to skill standards, it is divided into asphalt concrete, hot mix asphalt crushed stone, emulsified asphalt crushed stone, asphalt surface treatment, and asphalt penetration. Note 1 to Table 11-3 lists the corresponding travel grades for different asphalt concrete layers.

(i) Asphalt data

1. Asphalt

Asphalt pavement for highways, first-class highways, urban highways, and main roads shall be selected from asphalt or modified asphalt according to the "Technical Requirements for Heavy duty Transportation of Petroleum Asphalt"; Choose asphalt or modified asphalt that meets the "medium and light transportation journey petroleum asphalt skill requirements" for other journeys; Emulsified asphalt needs to meet the 'Journey Emulsified Asphalt Skill Requirements'.

2. Filler

Mainly suitable for powders below 0.075 millimeters. It is necessary to grind mineral dust with hydrophobic stones such as limestone or magmatic rocks, which must be clean and monotonous, and can flow out of the powder tank leisurely. The quality must meet the standard requirements.

3. Mineral deposits

Coarse and thin fillers should be clean, monotonous, free from weathering, and harmful impurities. Coarse fillers should also have a certain degree of hardness and strength, with excellent particle shape. Fine aggregates can be natural sand, mechanical sand, and crushed stone, with appropriate particle dispersion. The standards and quality of ore should comply with the requirements of the Asphalt Pavement Construction Skills Standard (JTGF40-2004).

4. Fiber

Fiber stabilizers mixed with asphalt mixtures should be selected from wood fibers, mineral fibers, etc. D. It is necessary for performance indicators to meet established requirements.

(2) Laying asphalt

1. Asphalt pavement

Asphalt coating is an asphalt coating that is sprayed onto a pre ground mineral layer. The cable asphalt manufacturer then applies embedded materials, asphalt coating, and rolling layer, and seals them with the asphalt coating. Asphalt pavement is suitable for second level and below journeys, sub highways, and urban journey branches, and can also be used as a connecting layer for asphalt pavement. The machines used on asphalt pavement include paving machines, asphalt distributors, and rollers.

Layered asphalt is a process that involves spraying asphalt onto steep ore piles with slightly different levels of water. In construction, the method of "oil first, material later" is generally used, that is, spraying the asphalt layer first, and then spraying the ore layer. Procedure for manufacturing asphalt pavement using layer method:

Bottom layer repair and cleaning → laminated asphalt or viscous asphalt sprinkling → bulk mineral deposit bottom layer → top rolling → top asphalt spraying → top seam laying → second seam laying → second seam laying → second seam laying → third seam laying → third asphalt spraying → coating laying → final rolling → initial service.

2. Surface treatment: Asphalt coating

Asphalt surface treatment is a thin layer of asphalt and fine-grained ore, with a thickness not exceeding 30 millimeters. Due to the thin processing layer, it is generally not durable and is primarily used to resist motion wear, improve waterproofing, improve leveling, and improve road traffic conditions. Suitable for level 3 and below journeys, urban journey branches, ring journeys, construction journeys at all levels, and coating or abrasion of old leaching layers. The machinery used for asphalt surface treatment includes asphalt sprayers, prefabricated equipment, and rollers, and the construction method can be layered. The treatment procedure for asphalt surface is similar to the construction procedure for asphalt pavement.

3. Hot mix asphalt pavement

Hot asphalt mixed pavement is a mixture of ore and asphalt in a hot state. The construction and shaping of hot soil are suitable for different levels of travel, including asphalt concrete, asphalt gravel, and anti-skid surfaces. The construction process can be divided into two stages: mixing and transportation of asphalt mixture, and on-site stacking. If you have any other questions, please refer to the official website of the cable asphalt manufacturer or contact us directly.