Product Specifications
Product Description
The"jianfeng"cement product serise is produced according to advanced national and industry standards. It won the award of"national inspection-free product", "national building materials bureau quality products", "brand-name products in zhejiang"and it passed iso9002 certification.
Specifications:
Grey portland cement for construction grade 42.5 according to british and en 197-1/2000 or astm c 150
Chemical composition
Silicon dioxide (sio2) 20.08 - 21.50
Aluminium oxide (a12o3) 5.30
Ferric oxide (fe2o3) 3.25 3.50
Calcium oxide (cao) 65.60
Magnesium oxide (mgo) 1.70 3.00
Sulphur trioxide (so3) 2.70 3.00
Loss of ignition (loi) 1.80 3.00
Insoluble residue % 0.1 0.7
Tricalcium silicate (c3s) 50.00 54.40
Dicalcium silicate (c2s) 14.2 18.20
Tricalcium aluminate (c3a) 6.00 6.80
Tricalcium alumino ferrice (c4af) 11.60
Chromium (cr%) 2.0 max
Physical and mechanical properties
Blain cm2/gr 3.250
Autoclave expantion 0.02
Normal consistency % 27.5
Initial setting time (vicat)(hours-mins) 3.25-4.50
Hard set (hours-mins) 4.54 6.00
Fitness index (cm2/gm) 2800-3040
Compressive strength iso/en 197-1/2000 bs 4550 mortar
@ 03 days 2.65 34.2 kg/cm2
@ 07 days 37.3 42.5 kg/cm2
@ 28 days 52.8 54.6 kg/cm2
British standard clinker
Examine item guaranteed
Cao 64%min
Sio2 20.0-23.0%
Al2o3 4.0-5.5%
Fe2o3 2.0-3.5%
Mgo 3.3-4.5%
So3 1.0%max
Loss of ignition 1.5%max
F-cao 1.5%max
Insoluble residue 0.75%max
(na2o+0.65k2o) 0.60%max
C3s 50-65%
Packing: 50 kg in polypropylene bags then enclosed in jumbo pack ( 1.5mt or 2.00 mt ). Or bulk.
Shipping:
1) shipment: To be effected within 30/45 days after receipt of the l/c
2) payment: T/t or by 100% irrevocable l/c at sight
3) terms: Fob, cif, cpt
4) insurance: Under cif, for 110% invoice value against all risk as per cic
Dated 1/1/1981
5) loading port: Ningbo or shanghai, China
Expedition is a professional manufacturer and agent of various quality and advantageous products. We are the only distributor of many exporting products like building materials, electronic&machinery goods, sporting goods, and textiles etc. We can produce special products according to customers' designs, specification and ideas, welcoming the OEM/ODM orders.
As sales volumes grew in a rapidly increasing number of countries, we decided to concentrate and invest more heavily in R&D activities, in order to provide our growing customer base with new products that meet the latest market trends and requirements.
Looking back at our first two years in business, we successfully built up an international customer base, which contains several Fortune 500 companies. We managed to establish long-term partnerships with many of our customers, involving them in our continuous effort to technically improve our products according to their specific needs.
This is how innovation became a joint mission of close cooperation with our customers in several countries around the world. We consider this to be our key competence area and strive to continuously further develop solid, long-term customer relationships and high quality products that meet the requirements of today's dynamic business environments around the world.
