| Model: | YL-08NP |
|---|---|
| Brand: | - |
| Origin: | Made In China |
| Category: | Chemicals / Other Chemicals |
| Label: | High Water Reducing , Concrete Admixture , naphthalene-based |
| Price: |
-
|
| Min. Order: | - |
| Live Chat: | Last Online:02 Jun, 2015 |
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
Ø YL-08NP is ideal concrete admixtures for preparing high-performance and high-strength concrete, mass concrete and long-distance transport concrete etc.
Ø It is suitable for working condition under temperature 5-40 ℃.
Ø Not suitable for being solely applied in the steam curing concrete.
Ø Test before applied in anhydrite, dross or similar industrial waste cement.
Advantage
Ø 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.
Ø Increases initial workability. High ultimate strengths.
Ø The concrete of compressive strength, flexural, tensile, impermeability and durability are significantly improved and enhanced.
Ø 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) % |
≤12% |
Chlorine content |
Non |
|
PH value |
7-9 |
Moisture % |
8.0 max |
Technical Data Sheet
|
Items |
Criteria |
Test Results (C×1%) |
||
|
Water Reducing Rate (%) |
≥14 |
24.4 |
||
|
Ratio of Bleeding Rate (%) |
≤100 |
32.8 |
||
|
Air Content (%) |
<4.5 |
2.4 |
||
|
Setting Time Difference (min) |
Initial |
>+90 |
+200 |
|
|
Compressive Strength Ratio (%) |
3 days |
-- |
-- |
|
|
7 days |
≥125 |
135 |
||
|
28 days |
≥120 |
132 |
||
|
Shrinkage (%) |
28 days |
≤135 |
109 |
|
|
Alkali Content (%) |
----- |
2.35 |
||
|
Alkali Content per m3 (kg) |
≤1.0 |
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 (%) |
≤0.1 |
0 |
||
|
Radiation |
Internal Exposure Index, IRa |
≤1.0 |
0.13 |
|
|
External Exposure , Index, IY |
≤1.0 |
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.
