Coconut fiber asphalt mixture and preparation method thereof
A technology of asphalt mixture and coconut fiber, which is applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems such as the preparation method of coconut fiber modified asphalt mixture, and achieve excellent road performance , Raw materials are cheap and easy to obtain, and the effect of improving the quality of use and durability
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Embodiment 1
[0025] A preparation method of coconut fiber asphalt mixture, comprising the following preparation steps:
[0026] Step 1, the coconut fiber is placed in a concentration of 1% NaOH solution and soaked for 1 hour, the coconut after alkalization treatment is washed with clear water, dried in an oven at 105°C to constant weight, and the coconut fiber is cut to 3mm to obtain chopped coconut fiber, set aside;
[0027] Step 2: Add the chopped coconut fiber into the AC asphalt mixture and mix evenly at 155°C. The specific mixing process is as follows: first dry mix the chopped coconut fiber with the aggregate in the AC asphalt mixture for 90 seconds, and then add AC The asphalt in the asphalt mixture was wet mixed for 90s, and finally mixed with the mineral powder in the AC asphalt mixture and stirred for 90s to obtain the coconut fiber asphalt mixture; wherein, the chopped coconut fiber accounted for 0.2% of the mass of the AC asphalt mixture, and the AC asphalt mixture The asphalt...
Embodiment 2
[0029] A preparation method of coconut fiber asphalt mixture, comprising the following preparation steps:
[0030] Step 1, the coconut fiber is placed in a concentration of 1.5% NaOH solution and soaked for 1.5h, the coconut after the alkalization treatment is washed with clear water, dried in an oven at 100°C to constant weight, and the coconut fiber is cut to 5mm, Chopped coconut fiber, set aside;
[0031] Step 2: Add the chopped coconut fiber into the AC asphalt mixture and mix evenly at 160°C. The specific mixing process is as follows: first dry mix the chopped coconut fiber with the aggregate in the AC asphalt mixture for 80 seconds, and then add AC The asphalt in the asphalt mixture was wet mixed for 80s, and finally mixed with the mineral powder in the AC asphalt mixture and mixed for 80s to obtain the coconut fiber asphalt mixture; wherein, the chopped coconut fiber accounted for 0.25% of the mass of the AC asphalt mixture, and the AC asphalt mixture The asphalt ratio...
Embodiment 3
[0033] A preparation method of coconut fiber asphalt mixture, comprising the following preparation steps:
[0034] Step 1: Soak the coconut fibers in a 1.2% NaOH solution for 2.0 hours, wash the alkalized coconuts with water, dry them in an oven at 110°C to constant weight, and cut the coconut fibers to 6mm. Chopped coconut fiber, set aside;
[0035] Step 2: Add the chopped coconut fiber into the AC asphalt mixture and mix evenly at 150°C. The specific mixing process is: first dry mix the chopped coconut fiber with the aggregate in the AC asphalt mixture for 100s, and then add AC The asphalt in the asphalt mixture was wet mixed for 100s, and finally mixed with the mineral powder in the AC asphalt mixture and stirred for 100s to obtain the coconut fiber asphalt mixture; wherein, the chopped coconut fiber accounted for 0.3% of the mass of the AC asphalt mixture, and the AC asphalt mixture The asphalt ratio of the raw material is 5.2%.
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