Product > 영문 고성능 콘크리트용 혼화제 > WINFLOW-GR(High performance AE high range water reducer)

WINFLOW-GR High performance AE high range water reducer (Retarders Type) KSF 2560

AE high range water reducer helps produce high performance concrete that improves the reliability of concrete structures. It helps provide high fluidity that minimizes heat of hydration, stiffening, drying shrinkage, and the impact of construction conditions during placement, and provides external resistance and durability in long term.

● USAGE
* High-strength high-performance concrete structures
* Hot weather concrete
* Dam concrete and Mass Concrete
* Fields where concrete casting is delayed and the concrete requires low heat

* Commonly used in ready-mixed concrete plants

● DOSAGE
* The amount used is generally 0.5% to 2.5% by weight of the cement, but consultation is required since the amount necessary may vary, depending on the formulation and application of the concrete.

● ADVANTAGES
* Provides mechanical and chemical robustness through copolymer molecules with double chain structures.
* Effective in the prevention of joints by helping adjust the setting time of concrete in summer.

* Heat of hydration and cracking are suppressed and durability is increased.

* By minimizing variations in slump, concrete of a high level of quality is possible.

● PROPERTIES
*Appearance : Dark brown liquid
* Specific gravity : 1.200±0.05 (20℃)
*pH : 7.0±3.0

● Packing : 250kg/drum, 1TON/drum, Tank Lorry

MixingDesign

Class	Gravel Size(mm)	W/C(%)	S/A(%)	Unit weight (kg/㎥)
Class	Gravel Size(mm)	W/C(%)	S/A(%)	W	C	S	G	AD
PLAIN	25	65.6	48.5	210	320	855	915
WINFLOW-GR	25	51.6	47.5	165	320	856	954	3.84

TestResults

Test Item	KSF2560		PLAIN	WINFLOW-GR
Admixture dosage (%)	-		-	1.2
Water Reduction (%)	18≤		-	21.4
Bleeding (%)	70≥		100	55.3
Setting Time (Hr : Min)	Initial	+90~+240	0	+105
Setting Time (Hr : Min)	Final	+240≥	0	+110
Compressive strength ratio(%)	3Day	135≤	100	150
	7Day	125≤	100	142
	28Day	115≤	100	146
Elongation (%)	110≥		-	104
Relative dynamic modulus of elasticity (%)	80≤		-	98.1
Time dependent change (initial→60min)	Slump(㎜)	60≥	180	185 → 155
Time dependent change (initial→60min)	Air(%)	±1.5	1.7	4.6 → 4.2

※ Length change test : Water curing for 7 days (20±2℃) and moist curing for 6 months (Temperature 20±2℃, Humidity 60±5%)

※ Freeze-Thaw Resistance test : Specimen Temp. (4℃ → -18℃, -18℃ → 4℃) 200 cycles