APPROVED SOURCES

ADMIXTURES FOR PRESTRESSED & PRECAST CONCRETE

DOSAGE, fl. oz/100 lb. of

Cementitious Materials

BRAND NAME USAGE PRODUCER/DISTRIBUTOR Typical Range

Daravair M             Air Entraining               W.R. Grace & Company                  0.3               0.3 – 6.0

Quantec PL-490    Plasticizer                    W.R. Grace & Company                  2.0               2.0 - 5.0

Eucon BK-S8         Plasticizer                    Euclid Chemical Company               2.0               2.0 - 4.0

Eucon DC              Plasticizer                    Euclid Chemical Company               2.0               2.0 - 6.0

Rheomix 730S       Plasticizer                    BASF Corporation                           2.0               2.0 - 15.0

Rheomix 750S       Plasticizer                    BASF Corporation                           2.0               2.0 - 5.0

RheoFit 900           Plasticizer                    BASF Corporation                           2.0               2.0 – 12.0

Rheopel Plus         Water-Repellent &       BASF Corporation                           1.0               1.0 - 5.0

                              Efflorescence Control

Sikamix PL-90 Plasticizer Sika Corporation 2.0 2.0 - 6.0

V-Mar F100           Rheology Modifying     W.R. Grace & Company                  5.0               3.0 - 12.0