SYUDOX® SP series, DSP-E series and DF-40

Dry Shrinkage Reducing agent [Powder]

 

 

SYUDOX® SP series, SYUDOX® DSP-E series, SYUDOX® DF-40 are all powder type dry shrinkage reducing agents (SRA) developed for premix products, such as polymer cement mortar.

FEATURES

Excellent effect of dry shrinkage reducing.

・Prevent cracking and reduce dry shrinkage around 10 to 50% in accordance with SYUDOX® series dosage.

Easy to mix with other powder.

Best mach air entraining can be controlled.

No specific performance change can be observed when existing with the redispersible polymer powders and the expansive additives.

 

APPEARANCE

Table 1. SYUDOX® Series appearance

Item SYUDOX® SP-01S SYUDOX® SP-02SC SYUDOX® DSP-E40 SYUDOX® DSP-E60 SYUDOX® DF-40
Appearance white powder white powder white powder white powder White flake



SYUDOX® SP-01S              SYUDOX® DSP-E40              SYUDOX® DF-40

Figure 1. Powder appearance of SYUDOX® Series.

 

DOSAGE

Depending on the application, the dosage of SYUDOX® SP series,SYUDOX® DSP-E series, SYUDOX® DF-40 varies from 0.5 to 4.0wt% of the cementitious material.

 

PERFORMANCE

Table 2. Mixture proportion of the mortar

W/C [%]

S/C

SRA dosage [C×%]

52.0

2.0

0 - 4.0

W: Water   C: Ordinary portland cement   S: Fine aggregate (Silica sand)

 

 

 

Figure 1.Result of dry shrinkage strain test

 

 

 

Item

SRA

dosage

[C×%]

Defoaming

agent dosage

[C×%]

Unit weight*1

[g/L]

Mortar

flow

[mm]

Strength [N/mm2]

Flexural

Compressive

7 days

28 days

7 days

28 days

Control

-

-

2,100

173

5.7

8.0

34.3

36.4

SYUDOX®

SP-01S

1.0

0.0050

2,080

176

5.2

8.4

34.3

37.3

2.0

0.0067

2,090

173

4.8

8.0

33.5

36.7

SYUDOX®

DSP-E40

2.0

0.0033

2,110

180

5.0

8.7

33.0

35.6

4.0

0.0067

2,100

186

5.0

8.4

30.4

34.8

Reference A

2.0

0.0033

2,100

168

5.3

7.3

33.0

37.4

Table 3Influence of SRA to mortar property (at 20 ± 2)

*1) For keeping within 50g on unit weight compared with control, adjusted by use of defoaming agent (SYUDOX® DEF-001-CS).

 

 

DOSAGE DEPENDENCE

 

Figure 3Relationship between SRA dosage and dry shrinkage strain

 

 

AIR ENTRAINING EFFECT

 

 

Figure 4Relationship between SRA dosage and unit weight

 

 

PERFORMANCE [Mixed with redispersible polymer ]
Table 4. Mixing proportion of the mortar

W/C [%]

S/C

Redispersible polymer powder dosage

[C×]

SRA dosage

[C×%]

52.0

2.0

10

2.0

W: Water C: Ordinary portland cement S: Fine aggregate (Silica sand) Redispersible polymer powder: acryl type

 

 

Figure 5Result of dry shrinkage strain test

 

 

Table 5Influence of SRA to mortar property (at 20 ± 2)

Item

SRA

dosage

[C×%]

Defoaming

agent dosage

[C×%]

Unit

weight*1

[g/L]

Mortar

flow

[mm]

Strength [N/mm2]

Flexural

Compressive

7 days

28 days

7days

28 days

Control

-

200

2,060

173

6.6

10.5

29.4

37.7

SYUDOX®

SP-01S

2.0

200

2,060

163

6.5

9.8

26.6

36.1

SYUDOX®

DSP-E40

2.0

200

2,050

173

5.7

9.7

26.2

35.5

Reference B

2.0

200

2,060

165

6.3

10.1

27.1

36.4

*1) For keeping within 50g on unit weight compared with control, adjusted by use of defoaming agent (SYUDOX® DEF-001-CS).

 

PROPERTIES

PROPERTIES of SYUDOX™ DSP-E series

RESULTS OF MORTAR TEST

(1) Mixing Proportion

Mixing Proportion of SYUDOX™ DSP-E series

(2) Condition

: Air curing (20℃, 80% of relative humidity)
⇒Water curing(20℃, 5 days)
⇒Leaving(20℃, 50% of relative humidity)

 

(3) Results

Results1 of SYUDOX™ DSP-E series

Results2 of SYUDOX™ DSP-E series

Results3 of SYUDOX™ DSP-E series

SAFETY DATA
HANDLING : Avoid contact with eyes. Avoid prolonged or repeated contact with skin.When handling at elevated temperature, provide adequate ventilation. Avoid rough handling or dropping.
FIRST AID MEASURES
EYE : Immediately flush with clean water until irritation disappear sufficiently, and consult a physician if necessary.
SKIN : Immediately wash thoroughly with plenty of water.
INGESTION : Immediately induce vomiting, and rinse mouth with water. If symptoms are not good after first-aid measures, consult a physician immediately. Do not induce vomiting or give anything by mouth to an unconscious parson.
PACKAGING

Table 7. Packaging for each SYUDOX® Series

Item

Packaging

Net

SYUDOX® SP-01S

Paper bag

15kg

SYUDOX® SP-02SC

SYUDOX® DSP-E40

20kg

SYUDOX® DSP-E60

SYUDOX® DF-40

 

OTHER INFORMATION
  1. Best fit dosage of DSP-E series depends on aggregate, mortar temperature and so on, try premix to give objective mortar.
  2. For air adjustment, simultaneous use air entraining agent or defoaming agent.
  3. To the best of our knowledge, although certain hazards are described herein, we cannot guarantee that these are the only hazards which exist.

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