Search results for "MACROTEXTURE"

showing 3 items of 3 documents

A new and simplified approach to assess the pavement surface micro- and macrotexture

2017

Abstract Road safety depends on pavement skid resistance and surface texture. Skid resistance mainly depends on micro-texture and macrotexture. Skid and texture measurements on samples, in the laboratory, at the preliminary stage of the design, would enhance the design in terms of timing, costs, and reliability. Consequently, this study aims at setting up and validating simple methods for assessing surface texture and skid resistance based on core/sample measurements. Experiments were carried out and predictive relationships were set up to explain and predict results. Under given conditions, miniaturised macro-and microtexture tests (modified EN 13036-1 and modified EN 13036-4, respectively…

EngineeringMicro-texturebusiness.industry0211 other engineering and technologies02 engineering and technologyBuilding and ConstructionSurface finishCivil engineeringMacrotexture020303 mechanical engineering & transports0203 mechanical engineeringSkid (automobile)021105 building & constructionPavement surface propertieRoad safetySettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials SciencebusinessTexture designSimulationCivil and Structural EngineeringMicro texture
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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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In-lab versus on-site measurement of surface performance of flexible pavements

2017

Road safety is one of the major problems which affect our society. Skid resistance mainly depends on a pavement surface microtexture and macrotexture. Macrotexture can be easily measured on site through the Sand Patch method (mean texture depth, MTD, UNI EN 13036-1, ASTM E 965, CNR B.U. 94/83). Carrying out the measurements above on the samples, in the laboratory, at the preliminary stage of the design of the pavement, would enhance the design in terms of timing and costs. In the light of the above, the objective of the study presented in this paper is to set up and validate a method for deriving the sand patch value based on core measurements. A Predictive relationship is proposed in terms…

Surface (mathematics)MacrotextureGeotechnical engineeringsurface performanceGeologyMicrotexture
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