APPROVED SOURCES

RETARDING, AND WATER REDUCING & RETARDING ADMIXTURES FOR BRIDGE DECK AND DRILLED SHAFT CONCRETE WHEN EXTENDED WORKING TIME IS REQUIRED

 

GUIDELINES FOR DOSAGE RATES WITH ANTICIPATED

WORKING TIME LIMITS

 

1.    Dosage is in fluid ounces per 100 lbs. (mL/kg) of cement, fly ash, and ggbfs.

 

2.    Check percent of air as retarding admixtures tend to increase air contents

 

Working time limits for various cements with NO RETARDER

 

Mix Temp at point of discharge

 

 

 

Dosage

 

 

 

Type I/II, no fly ash

 

 

Type I/II with fly ash

 

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

13

0

3.8

4.8

5.8

65

18

0

3.1

3.8

4.6

75

24

0

2.5

3.0

3.5

85

29

0

2.2

2.5

2.7

95

35

0

1.9

1.9

1.9

Including Type I/II with slag and fly ash.

 

 

Working time limits for various cements with Plastiment

 

Mix Temp at point  of discharge

 

 

Dosage

 

 

 

Type I/II, no fly ash

 

 

Type I/II with fly ash

 

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

13

2.0

 

 

 

 

 

3.0

 

 

 

 

 

4.0

 

 

 

 

 

5.0

 

 

 

65

18

3.0

5.1

5.8

6.6

 

 

4.0

7.1

7.8

8.7

 

 

5.0

11.4

12.0

13.0

 

 

6.0

20.2

20.8

19.0

75

24

3.0

3.6

4.0

4.2

 

 

4.0

4.7

5.1

5.4

 

 

5.0

6.9

7.4

7.8

 

 

6.0

10.9

11.4

12.1

 

 

7.0

18.9

19.3

20.5

85

29

3.0

3.0

3.3

3.1

 

 

4.0

3.6

3.9

3.8

 

 

5.0

4.9

5.1

5.1

 

 

6.0

6.9

7.1

7.2

 

 

7.0

10.2

10.5

10.3

95

35

3.0

2.2

2.2

2.2

 

 

4.0

2.7

2.7

2.7

 

 

5.0

3.5

3.5

3.5

 

 

6.0

4.9

4.9

4.9

 

 

7.0

7.4

7.4

7.4

 

 

8.0

12.1

12.1

12.1

 

 

Working time limits for various cements with MasterSet R 100 (Pozzolith 100 XR)

 

Mix Temp at point  of discharge

 

Dosage

 

 

Type I/II, no fly ash

 

Type I/II with fly ash

 

Type IS , IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

13

2.0

 

 

 

 

 

3.0

 

 

 

 

 

4.0

 

 

 

 

 

5.0

 

 

 

65

18

3.0

9.0

9.7

10.5

 

 

4.0

 

 

 

 

 

5.0

 

 

 

 

 

6.0

 

 

 

75

24

3.0

6.1

6.6

7.1

 

 

4.0

7.8

8.3

8.8

 

 

5.0

9.2

9.7

10.2

 

 

6.0

 

 

 

 

 

7.0

 

 

 

85

29

3.0

5.2

5.5

5.7

 

 

4.0

6.7

7.0

7.2

 

 

5.0

8.1

8.4

8.6

 

 

6.0

 

 

 

 

 

7.0

 

 

 

95

35

3.0

4.5

4.5

4.5

 

 

4.0

6.0

6.0

6.0

 

 

5.0

7.4

7.4

7.4

 

 

6.0

 

 

 

 

 

7.0

 

 

 

 

 

8.0

 

 

 

 

 

 

Working time limits for various cements with Daratard 17

 

Mix Temp at point  of discharge

 

Dosage

 

 

Type I/II, no fly ash

 

Type I/II with fly ash

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

13

2.0

 

 

 

 

 

3.0

 

 

 

 

 

4.0

 

 

 

 

 

5.0

 

 

 

65

18

3.0

 

 

 

 

 

4.0

 

 

 

 

 

5.0

 

 

 

 

 

6.0

 

 

 

75

24

3.0

4.3

4.7

5.3

 

 

4.0

6.6

7.1

7.6

 

 

5.0

7.6

8.1

8.6

 

 

6.0

 

 

 

 

 

7.0

 

 

 

85

29

3.0

4.3

4.6

4.8

 

 

4.0

5.2

5.5

5.7

 

 

5.0

6.5

6.8

7.0

 

 

6.0

 

 

 

 

 

7.0

 

 

 

95

35

3.0

3.9

3.9

3.9

 

 

4.0

4.4

4.4

4.4

 

 

5.0

5.7

5.7

5.7

 

 

6.0

 

 

 

 

 

7.0

 

 

 

 

 

8.0

 

 

 

 

 

Working time limits for various cements with – Eucon Retarder 100

 

Mix Temp at point  of discharge

 

Dosage

 

 

Type I/II, no fly ash

 

Type I/II with fly ash

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

13

2.0

 

 

 

 

 

3.0

9.6

10.6

11.6

 

 

4.0

10.4

11.4

12.4

 

 

5.0

12.3

13.3

15.3

65

18

3.0

8.2

8.9

9.7

 

 

4.0

10.0

10.7

11.5

 

 

5.0

11.7

12.4

13.2

 

 

6.0

12.9

13.6

14.4

75

24

3.0

7.5

8.0

8.5

 

 

4.0

9.9

10.4

10.9

 

 

5.0

11.9

12.4

12.9

 

 

6.0

12.5

13.0

13.5

 

 

7.0

 

 

 

85

29

3.0

6.8

7.1

7.3

 

 

4.0

9.6

9.9

10.1

 

 

5.0

11.9

12.2

12.4

 

 

6.0

11.9

12.2

12.4

 

 

7.0

 

 

 

95

35

3.0

6.8

6.8

6.8

 

 

4.0

9.9

9.9

9.9

 

 

5.0

11.8

11.8

11.8

 

 

6.0

11.8

11.8

11.8

 

 

7.0

 

 

 

 

 

8.0

 

 

 

 

 

 

Working time limits for various cements with Catexol 1000 R

 

Mix Temp at point  of discharge

 

Dosage

 

 

Type I/II, no fly ash

 

Type I/II with fly ash

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

13

2.0

4.5

5.5

6.5

 

 

3.0

5.5

6.5

7.5

 

 

4.0

7.0

8.0

9.0

 

 

5.0

 

 

 

65

18

3.0

4.8

5.5

6.3

 

 

4.0

5.6

6.3

7.1

 

 

5.0

6.8

7.5

8.3

 

 

6.0

 

 

 

75

24

3.0

5.2

5.7

6.2

 

 

4.0

5.7

6.2

6.7

 

 

5.0

6.7

7.2

7.7

 

 

6.0

 

 

 

 

 

7.0

 

 

 

85

29

3.0

4.8

5.1

5.3

 

 

4.0

5.4

5.7

5.9

 

 

5.0

6.2

6.5

6.7

 

 

6.0

 

 

 

 

 

7.0

 

 

 

95

35

3.0

4.5

4.5

4.5

 

 

4.0

5.1

5.1

5.1

 

 

5.0

5.7

5.7

5.7

 

 

6.0

6.5

6.5

6.5

 

 

7.0

 

 

 

 

 

8.0

 

 

 

 

 

Working time limits for various cements with MasterSet R 300 (Pozzolith 300 R)

 

Mix Temp at point of discharge

 

Dosage

 

 

Type I/II, no fly ash

 

Type I/II with fly ash

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

13

2.0

4.5

5.5

5.5

 

 

3.0

5.3

6.3

6.3

 

 

4.0

6.8

7.8

8.8

 

 

5.0

 

 

 

65

18

3.0

4.6

5.3

6.1

 

 

4.0

5.5

6.2

7.0

 

 

5.0

6.8

7.5

8.3

 

 

6.0

 

 

 

75

24

3.0

4.7

5.2

5.7

 

 

4.0

6.0

6.5

7.0

 

 

5.0

7.2

7.7

8.2

 

 

6.0

 

 

 

 

 

7.0

 

 

 

85

29

3.0

4.6

4.9

5.1

 

 

4.0

5.3

5.6

5.8

 

 

5.0

6.4

6.7

6.9

 

 

6.0

 

 

 

 

 

7.0

 

 

 

95

35

3.0

4.1

4.1

4.1

 

 

4.0

4.7

4.7

4.7

 

 

5.0

5.6

5.6

5.6

 

 

6.0

6.6

6.6

6.6

 

 

7.0

 

 

 

 

 

8.0

 

 

 

 

 

 

Working time limits for various cements with – Recover

 

Mix Temp at point  of discharge

 

Dosage Rate

 

 

Type I/II, no fly ash

 

Type I/II with fly ash

 

Type IS, IP with fly ash*

°F

°C

fl. oz/cwt

hours

hours

hours

75

24

0

3.2

4.2

5.2

 

 

3.0

4.8

5.8

6.8

 

 

4.0

5.5

6.5

7.5

 

 

5.0

6.3

7.3

8.3

 

 

6.0

7.6

8.6

9.6

85

29

0

2.9

3.9

4.9

 

 

3.0

4.4

5.4

6.4

 

 

4.0

4.7

5.7

6.7

 

 

5.0

5.3

6.3

7.3

 

 

6.0

6.0

7.0

8.0

95

35

0

2.2

3.2

4.2

 

 

3.0

2.8

3.8

4.8

 

 

4.0

3.0

4.0

5.0

 

 

5.0

3.7

4.7

5.7

 

 

6.0

4.5

5.5

6.5

 

 

Working time limits for various cements with MasterSet DELVO (Delvo Stabilizer)

 

Mix Temp at point of discharge

 

 

Dosage

 

 

 

Type I/II, no fly ash

 

 

Type I/II with fly ash

 

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

65

18

2.0

4.4

5.4

6.4

3.0

4.9

5.9

6.9

4.0

5.4

6.4

7.4

5.0

5.9

6.9

7.9

6.0

6.4

7.4

8.4

7.0

7.4

8.4

9.4

8.0

8.4

9.4

10.4

75

24

2.0

3.3

4.3

5.3

3.0

3.8

4.8

5.8

4.0

4.3

5.3

6.3

5.0

4.8

5.8

6.8

6.0

5.3

6.3

7.3

7.0

5.8

6.8

7.8

8.0

6.8

7.8

8.8

85

29

3.0

3.0

4.0

5.0

4.0

3.5

4.5

5.5

5.0

4.0

5.0

6.0

 

6.0

4.5

5.5

6.5

 

7.0

5.0

6.0

7.0

 

8.0

5.5

6.5

7.5

 

 

9.0

6.5

7.5

8.5

95

35

4.0

2.7

2.7

2.7

 

 

5.0

3.2

3.2

3.2

 

 

6.0

3.7

3.7

3.7

 

 

7.0

4.2

4.2

4.2

 

 

8.0

4.7

4.7

4.7

 

 

9.0

5.2

5.2

5.2

 

 

10.0

6.2

6.2

6.2

 

 

Working time limits for various cements with Plastiment ES

 

 

Mix Temp at

Point of

discharge

 

 

Dosage

 

 

Type I/II, no

fly ash

 

 

Type I/II

with fly ash

 

 

Type IS,

IP with fly ash*

oF

oC

fl. oz./cwt

hours

hours

hours

65

18

3.0

4.2

5.8

6.3

 

 

4.0

6.5

6.9

7.8

 

 

5.0

10.5

11.0

12.4

 

 

6.0

18.8

18.5

18.9

75

24

3.0

3.3

3.8

4.6

 

 

4.0

4.4

5.0

5.8

 

 

5.0

6.7

7.0

7.7

 

 

6.0

10.3

10.8

11.5

 

 

7.0

17.7

17.5

19.5

85

29

3.0

2.5

3.1

3.7

 

 

4.0

3.3

3.7

4.4

 

 

5.0

4.5

5.0

5.5

 

 

6.0

6.6

6.8

7.4

 

 

7.0

10.2

10.6

10.6

95

35

3.0

1.8

2.2

3.6

 

 

4.0

2.5

2.7

2.9

 

 

5.0

3.3

3.6

4.1

 

 

6.0

4.5

4.7

5.1

 

 

7.0

7.9

7.9

8.8

 

 

8.0

11.8

12.4

12.9

 

 

Working time limits for various cements with Polychem R

 

Mix Temp at point of discharge

 

 

Dosage

 

 

 

Type I/II, no fly ash

 

 

Type I/II with fly ash

 

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

65

18

2.0

4.5

5.2

6.0

3.0

6.0

6.7

7.5

4.0

7.5

8.2

9.0

5.0

8.3

9.0

9.8

6.0

9.8

10.5

11.3

75

24

2.0

4.3

4.8

5.3

3.0

5.5

6.0

6.5

4.0

6.8

7.3

7.8

5.0

7.8

8.3

8.8

6.0

8.8

9.3

9.8

85

29

2.0

4.0

4.3

4.5

 

 

3.0

5.0

5.3

5.5

 

 

4.0

6.0

6.3

6.5

 

 

5.0

7.3

7.6

7.8

 

 

6.0

8.5

8.8

9.0

 

 

Working time limits for various cements with SikaTard 440 (Hydration Controlling Admixture)

 

Mix Temp at point of discharge

 

 

Dosage

 

 

 

Type I/II, no fly ash

 

 

Type I/II with fly ash

 

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

65

18

2.0

4.3

5.9

7.1

3.0

5.5

7.1

8.3

4.0

7.2

8.8

10.0

5.0

8.3

9.9

11.1

6.0

10.5

12.1

13.3

7.0

12.3

13.9

15.1

8.0

13.0

14.6

15.8

75

24

2.0

3.5

4.9

5.8

3.0

4.4

5.8

6.7

4.0

5.4

6.2

7.1

5.0

6.6

8.0

8.9

6.0

8.0

9.4

10.3

7.0

9.6

10.0

10.9

8.0

10.4

11.8

12.7

85

29

3.0

3.1

4.3

4.9

4.0

3.6

4.8

5.4

5.0

4.2

5.4

6.0

 

6.0

4.9

6.1

6.7

 

7.0

5.7

6.9

7.5

 

8.0

6.6

7.8

8.3

 

 

9.0

7.6

8.8

9.4

95

35

4.0

2.7

3.7

4.0

 

 

5.0

3.3

4.3

4.6

 

 

6.0

4.0

5.0

5.3

 

 

7.0

4.8

5.8

6.1

 

 

8.0

5.7

6.7

7.0

 

 

9.0

6.7

7.7

8.0

 

 

10.0

7.8

8.8

9.1

 

 

Working time limits for various cements with Plastocrete 10N

 

Mix Temp at point of discharge

 

 

Dosage

 

 

 

Type I/II, no fly ash

 

 

Type I/II with fly ash

 

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

 

 

13

 

2.0

5.3

6.3

7.3

3.0

6.2

7.2

8.2

4.0

7.3

8.3

9.3

5.0

8.6

9.6

10.6

65

 

18

 

2.0

4.6

5.3

6.1

3.0

5.7

6.4

7.2

4.0

6.8

7.5

8.3

5.0

8.0

8.7

9.5

75

 

24

2.0

3.6

4.1

4.6

3.0

4.7

5.2

5.7

4.0

5.7

6.2

6.7

 

5.0

6.8

7.2

7.8

 

6.0

7.9

8.4

8.9

85

29

3.0

3.7

4.0

4.2

 

 

4.0

4.6

4.9

5.1

 

 

5.0

5.5

5.8

6.0

 

 

6.0

6.6

6.9

7.1

95

35

4.0

3.6

3.6

3.6

 

 

5.0

4.5

4.5

4.5

 

 

6.0

5.4

5.4

5.4

 

 

7.0

6.0

6.0

6.0

 

 

Working time limits for various cements with – Eucon WR-91

 

Mix Temp at point of discharge

 

 

Dosage

 

 

 

Type I/II, no fly ash

 

 

Type I/II with fly ash

 

 

Type IS, IP with fly ash*

°F

°C

fl. oz./cwt

hours

hours

hours

55

 

 

13

 

2.0

4.8

5.8

6.8

3.0

5.8

6.8

7.8

4.0

7.8

8.8

9.8

5.0

9.8

10.8

11.8

65

 

18

 

3.0

4.6

5.3

6.1

4.0

5.6

6.3

7.1

5.0

7.1

7.8

8.6

6.0

8.6

9.3

10.1

75

 

24

4.0

4.0

4.5

5.0

5.0

4.5

5.0

5.5

6.0

5.5

6.0

6.5

 

7.0

6.5

7.0

7.5

 

8.0

7.5

8.0

8.5

85

29

4.0

3.7

4.0

4.2

 

 

5.0

4.2

4.5

4.7

 

6.0

4.7

5.0

5.2

7.0

5.7

6.0

6.2

8.0

6.7

7.0

7.2

95

35

5.0

3.9

3.9

3.9

 

 

6.0

4.4

4.4

4.4

 

 

7.0

4.9

4.9

4.9

 

 

8.0

5.4

5.4

5.4