Effect and its Mechanisms of Hydrated Lime on Water Stability of Hot Asphalt Mixture

2013 ◽  
Vol 842 ◽  
pp. 22-26
Author(s):  
Wen Feng Yang
Keyword(s):  
Asphalt Mixture ◽  
Hydrated Lime ◽  
Water Stability ◽  
Test Results

The mechanism that hydrated lime can improve water stability of asphalt mixture was analyzed through contrasting the performance of hydrated lime and ordinary limestone ore filler. The test results indicated that hydrated lime can obviously improve the water stability of asphalt mixture.

Study on Water Stability of Warm Mix Drainage Asphalt with Sasobit

2013 ◽  
Vol 798-799 ◽  
pp. 178-181
Author(s):  
Jing Ya Chen ◽  
Kun Wang
Keyword(s):  
Polyester Fibre ◽  
Asphalt Mixture ◽  
Hydrated Lime ◽  
Water Stability ◽  
Test Results ◽  
Compaction Temperature ◽  
Porous Asphalt ◽  
Quick Lime ◽  
Stability Performance ◽  
Stability Order

To study water stability of Sasobit warm mix drainage asphalt (WMDA) and improve it, OGFC-13 WMA is primarily prepared with polyester fibre and Sasobit. According to the test results of specimens, formed at 5 different compaction temperatures by marshall tests, the optimal compaction temperature is determined. Then, general water stability tests were used to test the water stability performance of 4 kinds of asphalt mixtures, which were porous asphalt mixture of hot mix (OGFC-1),Sasobit WMDA without any anti-stripping agents (OGFC-2), Sasobit WMDA added hydrate lime (OGFC-3) and Sasobit WMDA added hydrated lime with quick lime (OGFC-4).Test results show that optimal compaction temperature is 150°C; water stability order (OGFC-3>OGFC-1>OGFC-2>OGFC-4) shows that using hydrated lime has beneficial yet limited effects to it. Hydrated lime with quick lime should be avoided for its adverse effect.1.5% hydrated lime shows best water stability.

Study on Water Stability of Evotherm® Warm Asphalt Mixture

2013 ◽  
Vol 753-755 ◽  
pp. 819-822
Author(s):  
Kui Li ◽  
De Dong Guo
Keyword(s):  
Asphalt Mixture ◽  
Hydrated Lime ◽  
Asphalt Mixtures ◽  
Water Stability ◽  
Test Results ◽  
Stability Tests ◽  
Compaction Temperature ◽  
Tracking Device ◽  
Wheel Tracking

AC-13C asphalt mixtures were mixing with 3% Evotherm® content and the optimal compaction temperature was determined according to test results of specimens formed at 4 different compaction temperatures by Marshall method. The general water stability tests and Hamburg wheel-tracking device (HWTD) were used to test the water stability of 4 kinds of asphalt mixtures, which were ordinary asphalt mixture, Evotherm® asphalt mixture without adding any anti-stripping agent, Evotherm® asphalt mixture adding liquid anti-stripping agent and Evotherm® asphalt mixture adding hydrated lime. Test results shows that the optimal compaction temperature is about 125°C; and compared to ordinary asphalt mixture, the long-term water stability of Evotherm® asphalt mixture is obviously poor caused by the lower compaction temperature; the addition of either liquid anti-stripping agent or hydrated lime improve the water stability to a great extent; comparatively speaking, addition of hydrated lime is the optimum measure to improve the water stability of Evotherm® warm mixture asphalt.

Research on the Relationship between Clay Content in Aggregate and Water Stability of Rubber Asphalt Mixture

2013 ◽  
Vol 639-640 ◽  
pp. 346-349
Author(s):  
Zhao Bin Xie
Keyword(s):  
Significant Influence ◽  
Asphalt Mixture ◽  
Clay Content ◽  
Water Stability ◽  
Test Results ◽  
Road Engineering ◽  
Stability Performance ◽  
Speed Up ◽  
The Relationship

In order to verify the characterization degree of water stability, research selects some clay content aggregate retrieved from road engineering field to produce rubber asphalt mixture and carry out the water stability test. Test results show that clay content in aggregate has a significant influence on the water stability of rubber asphalt mixture. When the content of clay in aggregate less than 1%, the influence on water stability is smaller; when the clay content exceeds 2%, the decay rate on water stability performance and long term properties obviously speed up, resulted in serious water damage.

Determination of Hydrated Lime Content in Asphalt Mastic Incorporating High Temperature Performances

2014 ◽  
Vol 912-914 ◽  
pp. 81-84
Author(s):  
Liang Zhou
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Hydrated Lime ◽  
Test Results ◽  
Dynamic Shear ◽  
Addition Agent ◽  
Asphalt Mastic ◽  
Lime Content ◽  
Different Content

Different hydrated lime content in asphalt mastic greatly influences the performances of asphalt mixture. The aim of this paper is to study asphalt mastic made with different content of hydrated lime was used in Dynamic Shear Rheological and Viscosity Tests. The optimum hydrated lime content was proposed in terms of test results above. The results illustrated that hydrated lime was an appropriate addition agent which can improve asphalt mastic properties greatly, however, too much hydrated lime may result in the decrease of asphalt mixture performances.

Study on Water Stability of Granite Asphalt Mixture

2013 ◽  
Vol 724-725 ◽  
pp. 1555-1559
Author(s):  
De Dong Guo
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
High Strength ◽  
Hydrated Lime ◽  
Water Stability ◽  
Fine Aggregate ◽  
The Road ◽  
Stability Performance ◽  
Stability Method ◽  
Effective Use

To make effective use of the granite aggregate resource, and improve the road properties of the granite-asphalt pavement. Firstly, technical properties of various kinds of granite aggregate were tested; Secondly, conduct the mixture design of asphalt concrete with different fine aggregate and stripping resistant admixture and checking the road performance. Thirdly, the asphalt concrete water stability of different kinds of granite was analyzed with the normal water stability method and Hamburg rutting test. The results showed that granite aggregate has the advantages of high strength and abrasion performance; water stability of granite asphalt mixture can be improved effectively by using limestone fine aggregate; adding hydrated lime or cement can significantly improve the water stability performance of granite asphalt mixture, lime hydrate having the optimal improving effect.

Effect of Hydrated Lime on Asphalt Matrix Properties and Asphalt Mix Volume Characteristics

2011 ◽  
Vol 374-377 ◽  
pp. 1462-1466
Author(s):  
Wen Feng Yang ◽  
Shao Peng Wu
Keyword(s):  
Hydrated Lime ◽  
Water Stability ◽  
Test Results ◽  
Retention Ratio ◽  
Mastic Asphalt ◽  
Volume Properties ◽  
Matrix Properties ◽  
Asphalt Mix ◽  
Mineral Powder ◽  
Volume Characteristics

Hydrated lime, as additive agent, was applied into asphalt mix to improve water stability. In this paper, asphalt retention ratio (According Schellenberg Leaking Test) and volume properties of asphalt mix containing hydrated lime, cement and conventional limestone mineral powder were comparatively investigated. The effect of hydrated lime on mastic asphalt was estimated using Dynamic Sheer Rheometer (DSR). The test results indicated that the asphalt retention ratio containing hydrated lime is superior to those of cement and mineral powder. At the same temperature, the viscosity and G*/sinδ of mastic asphalt containing hydrated lime increased apparently. To integrate the volume characteristics, asphalt retention ratio and mastic asphalt, the anti-stripping procedure of aggregate pre-damping using hydrated lime has been recommended.

Hydrated Lime Content in Asphalt Mastic Based on High Temperature Performances

2010 ◽  
Vol 40-41 ◽  
pp. 669-674 ◽  
Author(s):  
Jing Chen ◽  
Liang Zhou ◽  
Zeng Hui Yan
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Hydrated Lime ◽  
Test Results ◽  
Dynamic Shear ◽  
Addition Agent ◽  
Asphalt Mastic ◽  
Lime Content ◽  
Upper Limit ◽  
Different Content

Hydrated lime content in asphalt mastic greatly influences the performances of asphalt mixture. The aim of this paper is to study the hydrated lime to the high temperature characters, resist ability of aging, together with workability. Asphalt mastic made with different content of hydrated lime was used in Dynamic Shear Rheological and Viscosity Tests. The optimum hydrated lime content was proposed in terms of test results above. The results illustrated that hydrated lime was an appropriate addition agent which can improve asphalt mastic properties greatly, however, too much hydrated lime may result in the decrease of asphalt mixture performances, substitution of 30% hydrated lime was proposed as an upper limit.

scholarly journals Analysis of the Correlation between the Static and Fatigue Test Results of the Interlayer Bondings of Asphalt Layers

2016 ◽  
Vol 62 (1) ◽  
pp. 83-98 ◽  
Author(s):  
A. Szydło ◽  
K. Malicki
Keyword(s):  
Fatigue Life ◽  
Fatigue Test ◽  
Asphalt Mixture ◽  
Fatigue Tests ◽  
Test Results ◽  
Static Tests ◽  
Bonding State ◽  
Road Pavement ◽  
The Future ◽  
Pavement Structure

Abstract The bonding state of the asphalt layers in a road pavement structure significantly affects its fatigue life. These bondings, therefore, require detailed tests and optimization. In this paper, the analyses of the correlation between the results of laboratory static tests and the results of fatigue tests of asphalt mixture interlayer bondings were performed. The existence of the relationships between selected parameters was confirmed. In the future, the results of these analyses may allow for assessment of interlayer bondings’ fatigue life based on the results of quick and relatively easy static tests.

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