Investigation of the effect of hydrated lime on low temperature cracking of asphalt concrete

Download

index.pdf

Date

2019

Author

Varlı Bingöl, Başa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

154
views

98
downloads

The main objective of this study is to investigate the effect of hydrated lime on low-temperature cracking resistance of hot mix asphalt (HMA) mixtures. To this end, a comprehensive laboratory experimental program is established to evaluate the influence of hydrated lime modification, aggregate type, aggregate gradation and asphalt binder aging on temperature-related failure of HMA specimens. These specimens prepared from materials obtained from Turkish General Directorate of Highways are fabricated following the Superpave® method of mix design. Thermal stress restrained specimen tests (TSRST), direct tension tests (DTT) and indirect tensile tests (IDT) are performed to investigate the influence of hydrated lime modification as well as other mix design variables on the low temperature cracking resistance of HMA. Also, dynamic mechanical analysis (DMA), dynamic shear rheometer (DSR), and rotational viscosity (RV) tests are conducted to investigate the influence of HL on changing the rheological properties of asphalt binder. In addition to all the aforementioned tests, scanning electron microscopy (SEM) is conducted to observe the interaction of hydrated lime particles and asphalt binder at submicron levels. To develop robust conclusions, a few statistical analyses methods are utilized to identify the significant variables influencing the fracture strength and low temperature cracking of HMA; the resulting findings proved the significance of hydrated lime modification in increasing the fracture resistance of HMA when exposed to low temperatures.

Subject Keywords

Roads, Roads Design and construction, Roads Design and construction Climatic factors., Low Temperature Cracking, Hydrated Lime, Tensile Strength, Fracture Strength, Fracture Temperature.

URI

http://etd.lib.metu.edu.tr/upload/12625132/index.pdf
https://hdl.handle.net/11511/45105

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

The early heat of hydration of blended cements incorporating GGBFS and ground basaltic pumice (GBP) BİNİCİ, HANİFİ; ÇAĞATAY, İSMAİL HAKKI; Tokyay, Mustafa; KÖSE, MEHMET METİN (2006-11-01) In this study, the effect of blended cements containing additives on the heat of hydration and the rate of heat liberation was investigated. The blended cements were prepared by using clinker, ground granulated blast-furnace slag (GGBFS) and ground basaltic pumice (GBP). Two groups of specimens were prepared by the grinding method of intergrinding and separate grinding. For each group of specimen, two Blaine values of 2800 +/- 30 cm(2)/g and 4800 +/- 30 cm(2)/g and four different ratios of additives, which ...
The influence of zeolite and powdered Bayburt stones on the water transport kinetics and mechanical properties of hydrated lime mortars Ince, Ceren; Derogar, Shahram; Tiryakioglu, Nesrin Yardimci; Toklu, Y. Cengiz (2015-11-15) The purpose of this paper is an investigation of the possible role of zeolite and powdered Bayburt stones on the fresh and hardened properties of hydrated lime (CL90) mortars. Parameters studied in this paper form the main barriers to the use of hydrated lime in construction practice. Enhancement of these parameters is vital for mortar/substrate optimisation in masonry construction. The major concern of this paper therefore is the combination of wet mortar and brick substrate and most significantly the inte...
A study on heat transfer inside the wellbore during drilling operations Apak, Esat Can; Özbayoğlu, Evren; Department of Petroleum and Natural Gas Engineering (2006) Analysis of the drilling fluid temperature in a circulating well is the main objective of this study. Initially, an analytical temperature distribution model, which utilizes basic energy conservation principle, is presented for this purpose. A computer program is written in order to easily implement this model to different cases. Variables that have significant effect on temperature profile are observed. Since the verification of the analytical model is not probable for many cases, a computer program (ANSYS...
Investigation of the fluidity of biological fluids with a PDDTBN spin probe Severcan, Feride; Acar, B; Gokalp, S (1997-06-01) The aim of this study is to ascertain whether the electron spin resonance technique using perdeutero-di-t-butyl nitroxide (PDDTBN) as a spin probe is able to monitor relative fluidity changes occurring in body fluids, such as blood and parotid saliva, according to different physiological conditions. The present study reveals that the spin probe PDDTBN is able to monitor the fluidity changes in parotid saliva related to habitual smoking, and in whole blood related to the estradiol level. The rotational corre...
Investigation of lipid-derived formation of decadien-1-amine, 2-pentylpyridine, and acrylamide in potato chips fried in repeatedly used sunflower oil Karademir, Yesim; GÖKMEN, VURAL; Öztop, Halil Mecit (Elsevier BV, 2019-07-01) This study aimed to investigate lipid derived formations of decadien-1-amine, 2-pentylpyridine, and acrylamide in potato chips during frying. 2,4-Decadienal, a lipid derived carbonyl, was monitored in repeatedly used sunflower oil at different thermoxidation levels (0, 6, 12, 18, 24 h at 180 degrees C), and in potato chips prepared in. Formations of decadien-1-amine and 2-pentylpyridine were shown for the first time in potato chips. Frying oil had the highest concentration of 2,4-decadienal after thermal ox...

Citation Formats

B. Varlı Bingöl, “Investigation of the effect of hydrated lime on low temperature cracking of asphalt concrete,” Thesis (Ph.D.) -- Graduate School of Natural and Applied Sciences. Civil Engineering., Middle East Technical University, 2019.