การประเมินการหลุดลอกระหว่างแอสฟัลต์อิมัลชันและมวลรวม รวมถึงการใช้น้ำยางพาราเป็นส่วนผสมในแอสฟัลต์อิมัลชัน

Abstract

Asphalt emulsion can be divided into 2 types Cationic Asphalt Emulsion and Anionic Asphalt Emulsion. Because each type of aggregate has a different electric charge. and the mixing of natural latex with asphalt emulsion will change the charge of asphalt emulsion. The adhesion between asphalt and aggregate has a significant impact on asphalt road performance. and to avoid road surface stripping off which may cause premature deterioration of the road surface. This research aims to study and test the stripping between asphalt emulsion and different aggregates. with different electrical charges using the Rolling Bottle Test (RBT), which is a test to determine the percentage of asphalt coverage on the aggregate surface to assess the stripping between asphalt and aggregates. By using asphalt emulsion both cationic and anionic Including the using of natural rubber in the form of concentrated latex type Pre-vulcanized Latex mixed with anionic asphalt emulsion to test with all 3 types of aggregates, including Limestone from Chonburi province. Limestone from Saraburi Province and basalt from Buriram Province. The test took time to evaluate at 6 hours and 24 hours. From the test at 24 hours, it was found that Chonburi limestone, cationic asphalt emulsion had the average coverage percentage of asphalt more than that of negatively charged asphalt emulsion. Saraburi limestone Anionic emulsion asphalt had the average coverage percentage of asphalt more than cationic emulsion asphalt and Buriram basalt. Cationic emulsion asphalt had a higher average coverage percentage of asphalt than anionic emulsion asphalt. From mixing natural rubber latex to anionic and cationic asphalt emulsion, it increased the stripping resistance properties.