Evaluation of limestone crushed dust aggregates in hot mix asphalt

Assis, Sérgio Ricardo Honório de; Queiroz, Bismak Oliveira de; Araújo, Carla Cavalcante; Nunes, Kildenberg Kaynan Felix; Melo, Ricardo Almeida de; Lucena, Lêda Christiane de Figueiredo Lopes

doi:10.1016/j.conbuildmat.2017.05.107

Cited by 5 publications

(1 citation statement)

References 23 publications

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“…In previous studies with other materials, which also used these two compactions, it was found that specimens compacted with Superpave tend to present better results in mechanical tests. These better results are usually attributed to the greater efficiency of the crushing compaction used by the Superpave, than the impact compaction used in the Marshall (Assis et al, 2017). Thus, in this work, the results obtained with the two forms of compaction were compared.…”

Section: Introductionmentioning

confidence: 99%

Influence of unserviceable tires’ rubber on the mechanical performance of hot mix asphalt

Nunes

Pereira

Melo

et al. 2022

Revista de la Asociación Latinoamericana de Control de Calidad,

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This work aimed to optimize the production of hot mix asphalt (HMA) from the use of asphalt-rubber. For that, the mechanical performance of asphalt mixtures produced with different binders was evaluated: commercial asphalt-rubber (AR08), asphalt crumb rubber 10% (AR10) and 15% (AR15), and conventional asphalt (PEN 50-70). For the composition of these mixtures, the optimum asphalt contents were defined by the Marshall design. To carry out the mechanical tests, specimens molded with Marshall and Superpave compactors were tested. From the results obtained, it was verified that AR08 and AR10 asphaltic mixtures, compacted with Superpave, carried out the best mechanical performance. However, the AR08 binder is already available on the market, which facilitates its usage in paving works

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Section: Introductionmentioning

confidence: 99%

Influence of unserviceable tires’ rubber on the mechanical performance of hot mix asphalt

Nunes

Pereira

Melo

et al. 2022

Revista de la Asociación Latinoamericana de Control de Calidad,

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Preparation and Characterization of an Environmentally Friendly Dust Suppressant for Crust in a Nondisturbance Area of an Open Limestone Mine

Sun,

Sun

2024

J of Applied Polymer Sci

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To solve problems caused by dust pollution in open limestone mines, environmental dust suppressants were prepared with natural polymer extracts as raw materials. The proportion range of guar gum (GG), sodium carboxymethyl cellulose (CMC), and sodium dodecyl sulfate (SDS) as the single components of the composite dust suppressant (CDS) was determined by a single‐factor test. Response surface methodology (RSM) was used to optimize the mix design, and the weather resistance, compressive strength, and cost of CDS were tested and compared with many commercial dust suppressants. Microscopic tests were used to analyze the structural properties and functional group changes in CDS. The results showed that the optimal concentration of the CDS agent was 0.192% GG, 0.3% CMC, and 0.351% SDS. Under the optimal ratio, the viscosity of CDS was 119.56 mPa∙s, the pH was 7.62, the surface tension was 30.3 mN/m, and the price was 83.3 RMB/t. The dust hardness after 7 days of spraying CDS was 87 HA. CDS exhibits good resistance to rain erosion, pressure resistance, freeze–thaw resistance, and wind erosion. CDS formed a cross‐linked structure by linking the amide and carboxyl groups, which can significantly reduce porosity, and form a compact and flat solidified layer, which has good dust suppression performance.

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Performance Evaluation of Epoxy Asphalt Mixtures Prepared with Basalt and Limestone Aggregate under Different Epoxy System Contents

Min

Shi

et al. 2023

J. Mater. Civ. Eng.

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Evaluation of limestone crushed dust aggregates in hot mix asphalt

Cited by 5 publications

References 23 publications

Influence of unserviceable tires’ rubber on the mechanical performance of hot mix asphalt

Influence of unserviceable tires’ rubber on the mechanical performance of hot mix asphalt

Preparation and Characterization of an Environmentally Friendly Dust Suppressant for Crust in a Nondisturbance Area of an Open Limestone Mine

Performance Evaluation of Epoxy Asphalt Mixtures Prepared with Basalt and Limestone Aggregate under Different Epoxy System Contents

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