C12A7 Amorphous calcium aluminate ACA for sprayed concrete
Negotiable /Metric Ton
Min.Order:5 Metric Tons
Ruishi New Material Technology Co.,ltd
Amorphous C12A7 Amorphous calcium aluminate of Quick setting cement additive
Amorphous calcium aluminate accelerator Cement additive C12A7 of 5200-6000 m2/g
concrete admixture used Amorphous C12A7 Amorphous calcium aluminate
Refractory materials Aluminum 96% 3-5MM Brown fused alumina Brown corundum
Brown corundum Brown aluminum oxide for refractory brick 1-3mm 3-5mm
Brown fused alumina BFA SiO2 1.0%max 1-3MM for castable refractory
Description:
Amorphous calcium aluminate is the basic raw material of a new Accelerator, its principal constituent is the non-crystalline calcium aluminate. Appearance of light gray-green powder.
Properties of amorphous calcium higher reactivity than the crystalline product, used in conjunction with silicate cement, can achieve a higher degree of responsiveness and efficiency. Non-crystalline calcium aluminate reacts unexpectedly fast with plaster and water to produce ettringite; adds its appropriate to ordinary silicate cement, the initial setting in less than a minute to complete. Addition of ettringite structural stability, good strength. While ettringite volume expansion, formation of prestressed concrete and shrinkage resistance.
Specification:
Physical and chemical indexes of non-crystalline calcium aluminate:
Specification | Chemical composition(%) | |||||
CaO | Al2O3 | SiO2 | Fe2O3 | TiO2 | MgO | |
High-calcium products | 50-55% | 38-44% | ≤5.0 | ≤2.0 | ≤2.0 | ≤2.0 |
High-alumina products | ≤48 | ≥42 | ≤5.0 | ≤2.0 | ≤2.0 | ≤2.0 |
Non-crystallization rate | Over 95% | |||||
Specific surface area | 5000-6000 m2/g |
Packing:1 MT big bag or as per customer’s requirement
Amorphous Calcium aluminate advantages:
l Accelerated and rapid harding
l Defending against leakage
l High-strength and super high-early strength;
l Low profile;
l Enhanced persistence,
l Good adhesion
Non-crystalline calcium aluminate usages:
l Accelerated and rapid harding as cement accelerator,mainly in tunnels,
underground engineering
l Defending against leakage in nuclear power plant and other major projects
Keywords:
Amorphous Calcium Aluminate,Amorphous C12A7, ACA, Concrete Accelerator, Shotcrete Accelerator, Flash Setting Agent, Quick Setting Additive,Cement Additive,Shotcrete additive, Non Crystalline Calcium Aluminate, Non Crystallized Calcium Aluminate, CAS No 12042-68-1
FAQ :
Q1. Will the FREE SAMPLES be provided for buyers?
- YES. We will provided FREE SAMPLE about 1kg
Q2. How about the express fee?
- Our company’s policy is the buyer pay for express fee.
Q3. Is there QUALITY REPORT for the products?
- YES. We provide quality report of our company or CIQ,SGS according to client‘s requirement