Description
YL-08NP is a water reducing, highly effective superplasticizer with a set retarding effect for concrete in hot temperature which delays concrete setting time. It has also high range water reducing for promoting high early and ultimate strengths of concrete.
YL-08NP is naphthalene-based superplasticizer compounded by some of high-performance retarder, stabilizer and reinforcing admixtures etc.
It complies with ASTM C 494 Type G, GB8076-2008 and GB50119-2003.
Uses
YL-08NP is ideal concrete admixtures for preparing high-performance and high-strength concrete, mass concrete and long-distance transport concrete etc.
t is suitable for working condition under temperature 5-40 ¡æ.
Not suitable for being solely applied in the steam curing concrete.
Test before applied in anhydrite, dross or similar industrial waste cement.
Advantage
Has a high efficiency water-reducing, retarding in the initial setting and early strength in final setting, late-enhanced, less slump loss etc. which is extremely beneficial to the transport and to pouring of concrete.
Increases initial workability. High ultimate strengths.
The concrete of compressive strength, flexural, tensile, impermeability and durability are significantly improved and enhanced.
The concrete setting time prolong 1-3h, it can also be adjusted according to the user's demand. It has not affected the strength growth of concrete at different time.
Dosage
0.5-1.2% by weight of cement. Exact dosage rates are dependent on the type of effect sought, quality of cement and aggregates, water/cement ratio and ambient temperature. Therefore, in many cases it is advisable to carry out trial mixes.Using during mixing and after-mixing method and properly prolong stirring time to assure even.
Specifications
Item Norm Item Norm
Appearance Lark powder Fluidity of cement 230mm
Fineness (0.315mm remains) % ¡¨¹12% Chlorine content Non
PH value 7-9 Moisture % 8.0 max
Technical Data Sheet
Items Criteria Test Results (C¢1%)
Water Reducing Rate (%) ¡Y14 24.4
Ratio of Bleeding Rate (%) ¡¨¹100 32.8
Air Content (%) <4.5 2.4
Setting Time Difference (min) Initial >+90 +200
Compressive Strength Ratio (%) 3 days -- --
7 days Y125 135
28 days Y120 132
Shrinkage (%) 28 days ¹135 109
Alkali Content (%) ----- 2.35
Alkali Content per m3 (kg) ¹1.0 0.1
Chloride Ion Content ----- 0.09
Chloride Ion Content per m3(kg) Prestress Concrete <0.02 0.004
Reinforced Concrete 0.02~0.20
Plain Concrete 0.20~0.60
Ammonia Content (%) ;¨¹0.1 0
Radiation Internal Exposure Index, IRa ¹1.0 0.13
External Exposure , Index; IY ¨¹1.0 0.45
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.
For powder: Woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg.
