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A Study On The Performance Of Diatomite Modified Asphalt Mixture

Posted on:2009-02-24Degree:MasterType:Thesis
Country:ChinaCandidate:Z S LiFull Text:PDF
GTID:2132360242481519Subject:Road and Railway Engineering
Abstract/Summary:PDF Full Text Request
The character of mixed asphaltum is a kind of complicate material which is used in architecture.It is consisted of many parts,which affect the quality of the mixed asphaltum and change.Along with the sourse of the aterial,temperature,thechnics,condition of the experimentation.Accor-ding to the fact,when the diatomite as padding and reagent appent into asphaltum,certainly will,the gross of padding is increased.It perhaps aim at the problem that the influence of the effect which is changed,to seclect diaromite as reagent of mixed asphaltum used in road as an object to research.Mostly,they investigate the relation of the dosage between diatomite and mineral powder.The letterpress expatiates the background of diatomite investigated,the meaning and the actuality of the investigation researched by inside and outside.Through the information,we discuss the denaturalization mechanism of the diatomite as a kind of denaturalization reagent acts on mixed asphaltum to improve the capability of pad.Through experiment and incubrate,we research circs in the condition"under the formula of mixed mineral powder"the mixed asphaltum used in pad to amend the capability abroadly,to choose the group which synthesis capability of the road acts the good impact among.The investigation,makes us widen the view of denaturalization capability of diatomite to mixed asphaltum used in pad can be improved the situation.The letterpress discourses on the several significant scale characters of the diatomaceous mineral characteristic and as denaturalization reagent .From the four parts which are good consistent between diatomite and asphaltum,there are good decentralization in asphaltum,perfect sorption with asphaltum, makes the asphaltum intension ,shock absorption and water stability,moreover,they makes the road more security and makes mixed asphaltum high and low temperature improved especially the slippery road surface,to discuss.There is the benefit for us to recognize the experiment aim essentially,but give us the theoretics basic to go on wheels the experiment.According to the requriment of the scientific research ites,ensure the 13 kinds of experiment investigation about the performance of denaturalization mixed asphaltum used in the road under the condition which the formula of the diatomite mixed mineral powder.Second,we do the diversified experimentation of the capability to used the road , such as MARSHALL experimenta,high temperation track experiment,low temperation bend experiment and frezze and blend crack experiment for the different formula of the mixed mete.Finally,choose 5 teams which performance the better denaturalization capability among the date from every experiment,and then ensure the best to confirm the perfect formula of diatomic with mineral powder mixed mete.
Keywords/Search Tags:Diatomite Denaturalization mechanism Denaturalization asphaltum Mixed material, Capability used in pad
PDF Full Text Request
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