ประสิทธิผลจากการใช้ปูนขาวเพื่อแก้ปัญหาความเสียหายจากความชื้นในแอสฟัลต์คอนกรีต

Effectiveness of Hydrated Lime on Treatment of Moisture Damage in Asphalt Concrete

Name: จิรวัฒน์ ทรงผาสุข

Organization : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

keyword: Asphalt

; Asphalt Concrete Mixture /

; Moisture Damage

; Stripping in Asphalt Concrete Mixture

; Hydrated Lime

Abstract: This thesis was intended to study the effect of hydrated lime on treatment of moisture damage in asphalt mixture. The materials used in the study consisted of asphalt cement AC 60 - 70, corresponding to the standard of Highway Department, and the limestone aggregates from 3 sources showing stripping problem after being mixed with asphalt cement. The asphalt mixture produced by those aggregate tended to have less strength after exposing to the moisture. Five treatment level of hydrated lime in the from of slurry by blending water and hydrated lime with the ratio of 70:30 were used to investigate the optimum treatment level. In this study, the strengtg ratios of wet specimen and dry specimen , after being tested by two test methods : stability and indirect tensile, were used in the analysis. It was found in this study that the addition of hydrated lime showed the improvement in both strength ratios of all asphalt mixtures produced by the aggregates from 3 sources. However, due to the use of same amount index and the tensile strength ratio tended to reduce relatively after reaching the optimum hydrated lime content. It was also found that the optimum hydrated lime content varied among different aggregate sources. To obtain the optimum hydrated lime content, therefore, types and sources of aggregate need to be considered. However, the results from this study confirm that hydrated lime has significant effect in improving the strength characteristic of the asphalt mixture when exposed to moisture. It, therefore, tends to reduce stripping problem caused by moisture in asphalt concrete surface.

มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Address: กรุงเทพมหานคร (Bangkok)

Email: info.lib@mail.kmutt.ac.th

Name: ดร. ชยธันว์ พรหมศร

Role: อาจารย์ที่ปรึกษา

Created: 2543

Issued: 2005-10-17

Modified: 2006-05-30

วิทยานิพนธ์/Thesis

ISBN: 9746244159

CallNumber: CVE986

tha

DegreeName: วิศวกรรมศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: วิศวกรรมโยธา

Grantor: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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3	CVE986ab.txt	1.9 KB	30	2019-11-06 23:58:46

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