{"product_id":"polymer-modified-asphalt-cements-von-codrin-daranga","title":"POLYMER MODIFIED ASPHALT CEMENTS","description":"\u003cp\u003eThis work describes the characterization of aged  polymer modified bitumens to evaluate their  potential for recycling. A tri-block co-polymer  modified binder was selected and  characterized using standard bitumen qualification  techniques, i.e., the Superpave  PG protocol. We developed a procedure to  characterize the relative concentration of polymer  in asphalt cements by gel permeation chromatography.  Infrared spectrographic, thermogravimetric and  rheological techniques were used to identify changes  in the binder components as a result of aging. A  correlation between field aging time and simulated  aging by PAV was developed; PAV with humidity proved  to be the best prediction. A comparison was  established between the field aged materials and a  series of lab aged binders. All binders were  characterized with respect to their composition and  rheological properties. In general, residual polymer  was detected using gel permeation chromatography  analysis except when extensive oxidative age  hardening of the binder had occurred. Recycling of  this material will require additives to restore the  desired rheological properties to the binder blend.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838310336\"\u003e\u003ch3\u003eCharacterization of Aged Bitumens for Recycling Purposes\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838310336","offer_id":39497057206365,"sku":"9783838310336","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/9fe1c5c2-8d97-4639-b805-ca8eaff90ea5.jpg?v=1765264291","url":"https:\/\/shop.autorenwelt.de\/products\/polymer-modified-asphalt-cements-von-codrin-daranga","provider":"Autorenwelt Shop","version":"1.0","type":"link"}