Vibratory compaction method for preparing lunar regolith drilling simulant

Chongbin Chen; Qiquan Quan; Zongquan Deng; Shengyuan Jiang

doi:10.1016/j.asr.2016.04.021

Vibratory compaction method for preparing lunar regolith drilling simulant

Advances in Space Research ◽

10.1016/j.asr.2016.04.021 ◽

2016 ◽

Vol 58 (1) ◽

pp. 145-154 ◽

Cited By ~ 15

Author(s):

Chongbin Chen ◽

Qiquan Quan ◽

Zongquan Deng ◽

Shengyuan Jiang

Keyword(s):

Lunar Regolith ◽

Vibratory Compaction ◽

Compaction Method

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Study on mixture ratio design and performance of cement stabilized gravels based on vibratory compaction method

Progress in Civil, Architectural and Hydraulic Engineering IV ◽

10.1201/b19383-220 ◽

2015 ◽

pp. 1075-1078

Author(s):

H Pan ◽

L Qin ◽

X Qi ◽

L Xie ◽

M Jin

Keyword(s):

Mixture Ratio ◽

Vibratory Compaction ◽

And Performance ◽

Mixture Ratio Design ◽

Compaction Method

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Performance Evaluation of Recycled Asphalt Pavement Materials and Cold Recycling Mixtures Designed with Vibratory Compaction Method

Applied Sciences ◽

10.3390/app9153167 ◽

2019 ◽

Vol 9 (15) ◽

pp. 3167

Author(s):

Yuhui Pi ◽

Zhe Li ◽

Yingxing Pi ◽

Zhe Huang ◽

Guangcan Li

Keyword(s):

Performance Evaluation ◽

Asphalt Pavement ◽

Heavy Duty ◽

Recycled Asphalt Pavement ◽

Recycled Asphalt ◽

Accelerated Curing ◽

Vibratory Compaction ◽

Cold Recycling ◽

Emulsified Asphalt ◽

Compaction Method

In this paper, the basic composition and performance evaluation of the recycled asphalt pavement (RAP) materials were firstly analyzed, and two methods were proposed to evaluate strength characteristics of RAP materials, including a triaxial method for the residual strength and the mortar cementing method for the strength of RAP lump. Then, the cold recycling technology was applied on RAP materials with emulsified asphalt by using vibratory compaction and heavy-duty compaction methods (Proctor compaction method), and the results showed that the maximum dry density obtained by heavy-duty compaction was closer to the actual situation. Finally, the effects of wetting water, emulsified asphalt dosage and curing conditions on the performance of the specimens were investigated. It was found that when the emulsified asphalt was mixed uniformly, whether or not to add the wetting water have almost no effect on the strength of the molded specimens. When the matrix asphalt content of the emulsified asphalt was 30%~60%, the water could be directly added to the cold recycling mixture. The intensity of accelerated curing for two days at 40 °C was approximately equal to that of natural curing for three days, while that of accelerated curing for three days at 40 °C was approximately equal to that of natural curing for seven days, which provided a basis for the short-term laboratory test.

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Effect of Aggregate Degradation on Specimens Compacted by Superpave Gyratory Compactor

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/1590-01 ◽

1997 ◽

Vol 1590 (1) ◽

pp. 1-9 ◽

Cited By ~ 11

Author(s):

Ronald Collins ◽

Donald Watson ◽

Andrew Johnson ◽

Yiping (Peter) Wu

Keyword(s):

Los Angeles ◽

Volumetric Properties ◽

Los Angeles Abrasion ◽

Superpave Gyratory Compactor ◽

Asphalt Mix ◽

Field Compaction ◽

Gyratory Compaction ◽

Vibratory Compaction ◽

Level I ◽

Compaction Method

Aggregate degradation during gyratory compaction may cause changes in the original gradation of the aggregate, and it may also affect volumetric requirements for Superpave Level I mix design. The effect of aggregate degradation on the design gradation and final volumetric properties of the asphalt mix compacted by the Superpave gyratory and Astec vibratory compactors was evaluated. Because vibratory compaction is an alternative compaction method that simulates field compaction, a vibratory compactor developed by Astec Industries, Inc., was used for comparison with the Superpave gyratory compactor. Aggregates with high and low Los Angeles abrasion losses were used to evaluate the effect of aggregate toughness or abrasion resistance on gradation change and volumetric properties. The changes in the amount of material passing the 0.075-mm sieve due to aggregate degradation during compaction were not significant enough to prevent specimens from meeting dust proportion requirements, regardless of whether low-or high-abrasion loss aggregates were used. A mix containing high-abrasion aggregate was less likely to meet restricted zone requirements than a mix using low-abrasion aggregate after degradation resulting from compaction.

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