Contents

Contents............................................................................................................................................... 5

Why in situ hot remixing?..................................................................................................................7

Equipment ........................................................................................................................................... 8

Pre-heaters ....................................................................................................................................... 8

Scarification/mixing and laying machines ..................................................................................... 10

First type ................................................................................................................................. 10

(Figure 3) comprises, apart from new heating panels ............................................................ 10

Second type.............................................................................................................................. 11

(Figure 4) differs from the first through its type of cohesion breaker and its mixing method. 11

Third type ................................................................................................................................ 13

(Figure 5) is identical to the second for the cohesion breaking and mixing, with in addition 13

Laying ............................................................................................................................................ 13

Preliminary studies........................................................................................................................... 14

Characterization of materials in situ.............................................................................................. 14

Processing study............................................................................................................................. 15

Formulation testing ........................................................................................................................ 15 Inspections......................................................................................................................................... 17

Scope .................................................................................................................................................. 18

Performances and behavior ............................................................................................................. 20

Sensitive points ................................................................................................................................. 22

Future of the technique .................................................................................................................... 23

Appendix 1 ........................................................................................................................................ 25

Rejuvenating agents ......................................................................................................................... 25

Appendix 2 ........................................................................................................................................ 27

Sample formulation studies ............................................................................................................. 27

Study consistency........................................................................................................................... 27

Actual study scenarios, examples .................................................................................................. 27

Preliminary survey .................................................................................................................. 28

Objectives of the special technical specifications ................................................................... 29

Correcting agents.................................................................................................................... 29

Hot remixing study .................................................................................................................. 29

Preliminary survey .................................................................................................................. 33

Formulation study ................................................................................................................... 34

Comments................................................................................................................................ 35

Site........................................................................................................................................... 36

Preliminary survey .................................................................................................................. 37

Studies ..................................................................................................................................... 37

A few test results...................................................................................................................... 38