85% Tættet silica røg
85% Tættet silica røg
- Sio₂: >85%
- Farve: Grey
- PH Value: 6~8
- Bulk density: 550~700kg/m3
- Packages:1000kg plastic woven bags, 10kg soluble paper bags, 20kg soluble paper bags, 25kg plastic woven bags, 500kg plastic woven bags, 600kg plastic woven bags, 950kg plastic woven bags.
Introduction
85% Densified Silica Fume is a micro-silica fume with 85% SiO2 indhold, and the Bulk density is 550-700kg/m³.
Silica røg, also known as silica powder or Micro silica, is a kind of micro powder product which is recovered by dust collector after a large amount of smoke and dust produced by ore heating furnace in the production of ferro silicon or silicon metal. Its characteristics are: extremely fine particles, large specific surface area and good activity.
The main component of silica fume is SiO2, with a small amount of impurities such as C, Fe2O3, K2O, CaO, Na2O, osv. Due to its inherent characteristics, the average particle size is 0.23 um, the specific surface area is 20 m2/g, and the sieve residue of 45 um is less than 3%. By adding silica fume into concrete, the compacting, uigennemtrængelighed, corrosion resistance, frost resistance and other properties of concrete can be greatly improved. In concrete, the amount added is 5-10% of the cement content.
Fordele
Parametre
| PROPERTIES | ||
| State | Amorphous -Sub-micron powder | |
| Farve | Gray to medium gray powder | |
| Specific Gravity | 2.10 til 2.40 | |
| Solubility | Insoluble | |
| Bulk Density -Densified | 42 til 48 lb/'(674 til 770 kg/m³) | |
| Bulk Density -Undensified “as produced” | 12 til 20 lb/(192 til 320 kg/m³） | |
| SPECIFICATIONS | ||
| Chemical Requirements | ASTM | Typical |
| Siliciumdioxid (Sio₂)% | 85.0 % Minimum | 90.42% |
| Fugtindhold % | 3.0% Maksimum | 0.26% |
| Tab ved tænding (LOI) % | 6.0% Maksimum | 2.81% |
| Physical Requirements | ASTM | Typical |
| Oversize percent retained on 45-um (325 sieve) | 10.0 % Maksimum | 1.43% |
| Accelerated Porzolaric Strength Activity Index with Portland cement(7 day) | 105.0% Minimum | 118% |
| Specific Surface | 15 ㎡/g Minimum | 21.10 m2 /g |
Ansøgninger
- Vandkonservering og vandkraftteknik: i anti-nedsivnings- og anti-slid-delene, efter blanding med mikrosilicapulver, it can greatly improve the anti-seepage, anti-cracking, anti-abrasion and anti-cavitation performance.
- The production of high-strength concrete: silica powder as admixture to make high-strength concrete, the actual application of its strength level can be achieved 100Mpa.
- Seaport engineering: concrete mixed with silica powder can improve the concrete’s anti-abrasion performance, anti-seepage performance, to prevent electrochemical corrosion of reinforcing steel.
- Traffic engineering: silicapulverbeton, der bruges i motorvejsbelægninger og flybane, kan i høj grad forbedre betonens tidlige styrke og slidstyrke, i vedligeholdelse og reparation af motorvejsbelægning, du kan fremrykke åbningstiden og øge de økonomiske fordele.
- Sprøjtebeton: markant forbedre vedhæftningsevnen og sammenhængen af plastbeton, reducere mængden af rebound markant, øge tykkelsen af sprøjtebeton, når den er dannet, forkorte byggeperioden og spare omkostningerne ved projektet.
Packaging
- 10kg soluble paper bags x 84 on the pallets.
- 20kg soluble paper bags x 42 on the pallets.
- 950kg plastic woven bags x 2 on the pallets(with or without bottom spout)
- 1000kg plastic woven bags x 2 on the pallets(with or without bottom spout )
- 500kg plastic woven bags x 2 on the pallets (with or without bottom spout )
The machine is automatically packed and filtered by a screen, so that no debris is mixed in.
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