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High Performance Rubber Asphalt Concrete
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A rubberized asphalt, high-performance technology, applied in the field of high-performance rubberized asphalt concrete, can solve the problems of prone to rutting and poor comprehensive physical properties of rubberized asphalt concrete.
Active Publication Date: 2022-04-01
北京路德永泰环保科技有限公司
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[0005] The present invention intends to provide a high-performance rubber asphalt concrete to solve the problem that the existing rubber asphalt concrete has poor comprehensive physical properties and makes the road surface prone to rutting
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preparation example Construction
[0039] The preparation method of SMA-13 type high performance rubber concrete asphalt comprises the following steps:
[0040] Step 1, prepare rubber asphalt, the preparation of rubber asphalt comprises the following steps:
[0041] (1) Screen out the rubber powder of suitable particle size, and take by weighing rubber powder, rubber activator and stabilizer, and put in the high-speed mixing equipment; start the high-speed mixing equipment, to rubber powder, rubber activator and The stabilizer was thoroughly mixed to obtain Mixture A.
[0042] (2) Weigh the asphalt and SBS according to the measurement, put the asphalt into the mixing tank, and heat the asphalt to 210-220°C, then add the weighed SBS and 1 / 2 of the mixture A, and heat the mixture at a temperature of 210-220°C 20-45 min at a stirring rate of 500-800 rpm to form mixture B. The heating temperature and holding temperature here are both 215° C., the stirring rate is 650 rpm, and the stirring time is 30 min.
[00...
Embodiment 11
[0050] Embodiment 11 differs from Embodiment 10 only in that, as figure 1 As shown, the high-speed shear emulsifier used in the present embodiment includes a tank body 1, a heating channel is arranged on the outer wall of the tank body 1, and a heat source is connected on the heating channel (for example, water, oil, liquid metal, etc. are passed into the heating channel. Wait). The top of the tank body 1 is provided with a sealing cover body 2 , the sealing cover body 2 is provided with a material inlet 21 , and the bottom of the tank body 1 is provided with a material outlet port 11 . The material inlet 21 is provided with a sealing plug, and the material outlet 11 is provided with a discharge valve.
[0051] The inner side of the sealing cover 2 is fixed with a motor, the driving shaft 4 of the motor is coaxially fixed with the stirring shaft 3, and the driving gear 31 is coaxially fixed on the stirring shaft 3; the sealing cover 2 is also rotatably connected with the driv...
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Abstract
The invention belongs to the technical field of mortar, concrete or artificial stone composition of asphalt materials, and discloses a high-performance rubber asphalt concrete, including rubber asphalt and graded stone materials, and the rubber asphalt includes petroleum asphalt, rubber powder, SBS, and rubber activator 1. Stabilizer; the preparation method is to fully stir and mix the configured rubber asphalt and graded stones in a high temperature environment to form high-performance rubber asphalt concrete. The rubber asphalt used in the present invention has a high proportion of rubber powder added, which overcomes the problems of adding a high proportion of rubber powder to the traditional rubber asphalt, and can make the prepared high-performance rubber asphalt concrete excellent in comprehensive physical properties and more elastic. The advantages of strong feet and high temperature anti-rutting ability (dynamic stability at 60°C) make the probability of rutting on the road surface low.
Description
technical field [0001] The invention belongs to the technical field of mortar, concrete or artificial stone composition of asphalt materials, and in particular relates to a high-performance rubber asphalt concrete. Background technique [0002] Asphalt concrete, commonly known as asphalt concrete, is artificially selected with a certain gradation composition of mineral materials, crushed stones or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, and mixed under strictly controlled conditions. The resulting mixture is mainly used as pavement material. The strength of asphalt concrete is mainly manifested in two aspects: the bonding force between asphalt and mineral aggregates and the internal friction resistance and locking force between aggregate particles. formed by cooperation. The traditional asphalt mixture uses petroleum asphalt, and with the rapid development of the social economy, the transportation also ...
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