Description

YL-09 NP is naphthalene-based non-chloride set-accelerating water-reducing admixture, it significantly accelerates setting time, and reduces the quantity of mixing water necessary to produce concrete of a given consistency, while providing greater economy for a given strength. It increases strengths and significantly improves permeability, workability and finishing characteristics. It complies with GB 8076-2008, GB50119-2003 and ASTM C494, Type E.

 

Uses

Ø         This product is designed for the constructions requiring earlier strength for normal concrete, steel-reinforced concrete, and pre-stress concrete under normal temperature, low temperature (-5 to 30 degree C).

Ø         Widely used in pre-cast & deposit concrete, armored concrete, pre-stressed reinforced concrete and fly-ash-cement concrete. Compatible with Portland cement, normal Portland cement, Portland slag cement, fly-ash cement and Portland pozzolanic cement etc.

Ø         Suitable for self-cured concrete and its formulations. It has remarkable effects of water reduction and enhancement, especially at the early stage. The modulus and site utilization can be improved.

 

Advantages

Ø         Accelerating setting time across a wide range of temperatures. Increasing early and ultimate compressive and flexural strengths.

Ø         Water reducing 10-15% with low dosage of 1.5-2.5%

Ø         After application, all physical properties of concrete can be improved to a certain extent.

Ø         10%-15% of cement will be reserved when it is applied as a condition of blending in which collapsibility and strength are fixed forehand.

 

Specifications

Item	Norm	Item	Norm
Appearance	Gray powder	PH value	7-9
Fineness (0.315mm remains) %	≤12%	Chlorine content	Non
Moisture	≤10%	Fluidity of cement	160mm

 

Technical Data Sheet

Item		Actual results	Criteria
Water-reducing rate (%)		≥12	≥8
Bleeding rate ratio (%)		≤90	≤95
Air content (%)		≤2.5	≤4.0
Setting time difference (min)	Initial setting	-30～+30	-90～+90
	Final setting	-30～+30	-90～+90
Compressive strength ratio (%)≥	1 day	145	135
	3 days	140	130
	7 days	120	110
	28 days	110	100
Shrinkage ratio (%)	28 days	≤120	≤135
Corrosion reinforcing steel bar		Non

 

 

Package, Storage & Shelf Life

 

For powder: Woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg.

 

It should be stored in a dedicated warehouse that is well-ventilated and dry and keep away from moisture.

 

Shelf Life: Minimum 12 months. After the expiration date, it can be used if testing results is qualified.