Description
JK-07NP is a naphthalene-based concrete admixture, it’s a product without chlorine and low-alkali, with a lower dosage, the price of product is reasonable, the economic benefit is significant. Thus, it meets the requirements of chemical admixture specifications for concrete: ASTM Designation C 494 as a Type A, GB8076-2008 and GB50119-2003 etc.
Uses
1. Suitable for civil engineering, hydraulic engineering, municipal engineering
2. Pumping concrete, the low-grade concrete of the road concrete.
Advantage
1. Reducing 8 to 12% of water but low dosage from 0.5 to1.0%.
2. Improve the performance of fresh concrete and improve the performance of fresh concrete.
3. It contains no chloride and no basic active matter, it harmless to steel bar.
Technical data sheet
|
Item
|
Actual results
|
Criteria
|
|
|
Water-reducing rate (%)
|
≥10
|
≥8
|
|
|
Bleeding rate ratio (%)
|
≤85
|
≤100
|
|
|
Air content (%)
|
≤3.0
|
≤4.0
|
|
|
The difference of setting time (min)
|
Initial setting
|
+30-+120
|
-90～+120
|
|
Final setting
|
+30-+120
|
-90～+120
|
|
|
Compressive strength ratio (%)≥
|
1 day
|
--
|
--
|
|
3 days
|
115
|
115
|
|
|
7 days
|
120
|
115
|
|
|
28 days
|
120
|
110
|
|
|
Shrinkage ratio (%)
|
28 days
|
≤120
|
≤135
|
|
Corrosion reinforcing steel bar
|
Non
|
--
|
|
Specifications
|
Item
|
Norm
|
Item
|
Norm
|
|
Appearance
|
Lark powder
|
PH value
|
7-9
|
|
Finesse
|
0.315mm sieve≤12%
|
Chlorine content
|
Non
|
|
Moisture content
|
≤10%
|
Foam-breaking time
|
≤30seconds
|
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.