1,720,966 research outputs found
Comfort di marcia e geometria della strada: fattori causali dei disturbi chinetosici
No full textRapporto di ricerc
Polishing resistance and mechanical properties of aggregates for asphalt concrete wearing courses
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Materiali da demolizione di pavimentazioni stradali bituminose per la formazione di fondazioni e sottofondi
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Performance of Cement Stabilized Recycled Crushed Concrete
No full textA study to advance knowledge concerning the performance and strength variability of cement
stabilized recycled crushed concrete mixtures for potential use as a stabilized base or subbase material
in road pavements was conducted, investigating mixtures composition. Grain size distribution tests
and composition analysis were thus carried out to characterize different recycled crushed concrete
mixtures. Mixture performance was evaluated in terms of unconfined compressive strength, indirect
diametrical tensile strength, elastic modulus, indirect tensile resilient modulus and durability.
Additionally, performance variations were examined in relation to the following items: mixtures
composition, curing time, concrete ageing of original mixtures, amount of fresh cement added.
Laboratory compaction of the aggregate mixed with 2% and 4% of fresh added cement was effected
using gyratory compaction. Specimens were cured in a controlled climatic chamber for 7 and 28 days.
The results indicate that in general, recycled concrete ageing and original characteristics
significantly affect the performance of cement stabilized crushed concrete mixtures. Investigations
also indicate that further detailed research is required to derive more extensive indications and also to
develop a means of acceptance based on strength, suitable for use in performance based specifications.
But overall, analysis of laboratory test results already indicates that given correct grading and other
properties, the recycled stabilized mixtures tested can be potentially reused for pavement base and
subbase layer construction
Parametri Geotecnici Richiesti in Relazione al Problema di Ingegneria Civile: Il Corpo Stradale
No full textPreliminary investigation into the utilization of cupola slag as road construction material
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Studio e controllo di pavimentazioni stradali a bassa emissione sonora in ambito urbano
No full textRapporto di ricerc
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