ADDITIVES TO BITUMENS

Bitumens Modified with Recycled Polymers

Increasing traffic loading and volumes on roads has led to the use of polymer modified binders to improve the performance of bitumen in terms of additional strength, durability and increased resistance to rutting and fatigue cracking. Generally those modifiers currently in use are virgin polymers but the research investigate the possibility of using waste polymers instead. The aim was to find a...

Additives to preservation solutions.

As the impact of ischemia reperfusion injury on graft outcome is now well defined, efforts are made towards decreasing these lesions, typically through the improvement of preservation techniques. The use of pharmacological supplements which could be compatible with any preservation solution used by the transplant center and target specific pathways of IR is an interesting strategy to improve gr...

Occurrence, Properties, and Uses of Some Natural Bitumens

Adverse reactions to food additives.

The first published report of an adverse reaction to a food additive was that provided by Lockey (1959). He described urticaria in a patient who was given steroid therapy, the formulation of which contained tartrazine. In 1973 the Ministry of Agriculture, Fisheries and Food’s Food Additives and Contaminants Committee produced an interim report on the Review of the Colouring Matter in Food Regul...

Bitumens and bitumen emissions, and some heterocyclic polycyclic aromatic hydrocarbons.

1190 www.thelancet.com/oncology Vol 12 December 2011 In October, 2011, 16 experts from nine countries met at the International Agency for Research on Cancer (IARC) in Lyon, France, to reassess the carcinogenicity of bitumens and their emissions, and of some N-heterocyclic and S-heterocyclic polycyclic aromatic hydrocarbons (PAHs). These assessments will be published as Volume 103 of the IARC Mo...