Search results for "WORKABILITY"

showing 3 items of 3 documents

SURFACE AND MECHANISTIC PROPERTIES OF RECYCLED BITUMINOUS MIXTURES

2019

EXECUTIVE SUMMARY Problem Often, when the characteristics of a bituminous mixture are analised, there are major differences between in-lab and in-situ results. This is due to the fact that the procedures and techniques implemented during the design phase (in lab) may be different from those used on site. Then, is very important to be able to predict the main properties of a mixture particularly when innovative materials are used. For example, when crumb rubber is used, phisical and volumetric properties of mixes may change over time, in particular due to the swelling phenomenon that it alters different properties of the mixture (e.g., viscosity). This study aims to investigate the main aspe…

MICROTEXTUREVISCOSITY OVER TIMECRUMB RUBBERviscosità di masticiWORKABILITYproprietà meccaniche delle pavimentazioni stradalicompattabilità misceleLIFE CYCLE COST ANALYSISPAY ADJUSTMENTMASTIC VISCOSITYmicrotessiturametodi di progettazione di pavimentazioni stradaliCOMPACTABILITYRUTTINGpolverino di gommapenalitàproprietà superficiali delle pavimentazioni stradaliDRY PROCESSEXPECTED LIFESettore ICAR/04 - Strade Ferrovie Ed AeroportiKenPavegomma da pneumatici fuori usorigidezzaaggiustamento monetarioROAD SURFACE PROPERTIESM-EPDGMACROTEXTURESHORT-TERM OVEN AGINGROAD MECHANISTIC PROPERTIESSTIFFNESSAASHTO Guide 1993processo di compattazione interrottodeformazioni permanentiinvecchiamento a breve terminemacrotessituralavorabilità miscelevita attesaINTERRUPTED COMPACTION PROCESSanalisi del costo del ciclo di vitaPAVEMENT DESIGN METHODSSWELLING PHENOMENONMnPaveprocesso seccofenomeno di rigonfiamentomonitoraggio viscosità nel tempo
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Soil erosion risk, Sicilian Region (1:250,000)

2014

Assessing the risk of soil erosion caused by water at the regional level is important for current and future planning of land use and environmental actions to combat land degradation. The gravity of the risk depends not only on the rate of soil erosion by water, but also on other factors, primarily soil depth and workability of the underlying rocks and sediments, which may be used to calculate the eroded soil. We estimate the rate of erosion by water (tons ha-1 year-1) applying the Universal Soil Loss Equation model. The map of soil content (tons ha21) to the effective rooting depth was divided by the map of soil erosion rate to obtain the risk of erosion by water in Sicily, expressed in te…

Settore AGR/14 - Pedologialand degradationrisk assessment; soil recovery; land degradation; rock workability; Mediterranean; Sicilyrisk assessmentsoil recoveryMediterraneanrock workabilitySicily
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Calcestruzzo autocompattante siciliano: un'esperienza con il filler vulcanico dell'Etna

2009

Self compacting concrete is one of the last developments in the technology of concrete, being studied and improved from the first '70es. Its production is connected with the use of fillers, most of which coming from iron metallurgy, scarsely present on Sicilian territory. So, the aim of the risearch was to realize self compacting concrete using exclusively local filler, particularly the Etna ashes with a strong pozzolanic connotation, pointing out the use of useless at the moment natural resource. The study relates to the verification of the more appropriate mix-designs and the tests on compressive strength of specimens to early curing and after 28 days. Different characterization tests wer…

Sicilian self compacting filler workability strength resistanceSettore ICAR/11 - Produzione Edilizia
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