What is the bulk density range of this product?

The bulk density varies from 130 kg/m3 (undensified) to 600 kg/m3 depending on the degree of densification.

What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

92% Densified-Grade Silica Fume in Concrete Microsilica/Micro Silica

Name: 92% Densified-Grade Silica Fume in Concrete Microsilica/Micro Silica
Brand: Gansu Mingruige Trading Co., Ltd.
SKU: 2152857452

Gansu, ChinaGansu Mingruige Trading Co., Ltd.

US$120.00

27 Tons

Product profile

Customization

Available

Type

Portland Pozzolana Cement

Mineral Composition

Portland Cement

Model NO.

85%-95%

Hardening Feature

Rapid Hardening

Function

Common Cement, Special Cement

Heat of Hydration

Moderate Heat

Fineness

0~10um

Technique

Dry Process

Color

Grey

Transport Package

Jumbo Bag

Specification

85-95%

Trademark

MRG

Origin

China

HS Code

28112290

Production Capacity

80000mt/Month

Key features

High Performance Concrete: Improves compressive strength, bond strength, and abrasion resistance in concrete mixes.

Corrosion Protection: Reduces permeability to chloride ions, protecting steel reinforcement from corrosion.

Ultrafine Particle Size: Average particle diameter of 150 nm, approximately 100 times smaller than cement particles.

Oil & Gas Applications: Used for well bore grouting, leak repairs, and sealing depleted zones in oil operations.

Reduced Bleeding: Significantly reduces segregation and bleeding by consuming free water and blocking pores.

Standard Compliance: Meets ASTM C1240 and EN 13263 specifications for cementitious mixtures.

High Silica Content: Effective pozzolanic material with specific surface area ranging from 15,000 to 30,000 m2/kg.

Densified Options: Available in densified grades with bulk density varying from 130 to 600 kg/m3.

Company profile

Gansu Mingruige Trading Co., Ltd.

Gansu, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2021-04-22Nearest Port: Qingdao, TianJinAverage Response Time: ≤18hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB, CFR, CIF

AI-Powered supplier vetting

SummaryGansu Mingruige Trading Co., Ltd. is identified as a Chinese trading company and manufacturer/factory operating in ferroalloys, coke, graphite, silicon-related products, and chemicals. The supplier reports ISO 9001 and GMP certifications, more than 10 production lines, 6–10 quality-control staff, and 41–50 years of R&D-engineer experience. It states annual output across several products, broad export-market coverage, self-operated import/export rights, and export sales representing 71%–90% of total sales. The supplier also describes organized purchasing, sales, quality-control, and finance departments, together with nationwide sales agencies and after-sales services. However, the provided information does not establish customer-specific cases, customization capabilities, or sufficient evidence to assess financial credibility. The stated production information is substantial, but the materials also identify the business as a trading company, so the precise allocation between owned manufacturing and trading...

Supplier typeThe supplier is explicitly classified as both a trading company and manufacturer/factory in one record, while another record identifies it as a trading company. It also reports a factory location in Tianzhu, Gansu, and operates more than 10 production lines, indicating manufacturing involvement, although the exact organizational scope of the factory is not fully clarified.

CertificationsThe supplier reports holding ISO 9001 and GMP certifications. These are explicit management-system certifications and provide positive evidence of formal quality and operational controls.

After-Sales capabilityThe supplier states that it has a sound plan for product after-sales service, an advanced sales-service concept, nationwide sales agencies, and a commitment to providing quality service. These statements support an after-sales capability, although no specific service procedures, response targets, or service records are provided.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, and stated annual outputs of ferro silicon, semi coke, silica fume, rare ferro silicon magnesium, and natural graphite. It also reports delivery within 15 working days during off-peak periods and one month during peak periods, supporting a substantial stated production and fulfillment capability.

Product Q&A

Q:What is the difference between silica fume and fumed silica?

They have different production processes, particle characteristics, and fields of application. Silica fume is a by-product of silicon alloy production, while fumed silica is pyrogenic.

Q:How does silica fume affect concrete workability?

It increases the surface area, causing slump loss proportional to content. However, the mix remains highly cohesive despite the decreased slump.

Q:What are the main benefits of adding silica fume to concrete?

It improves compressive strength, bond strength, abrasion resistance, and reduces permeability to chloride ions for better corrosion protection.

Q:What are the standard specifications for this silica fume?

It complies with ASTM C1240 and EN 13263 standards for silica fume used in cementitious mixtures.

Q:How is silica fume used in oil and gas operations?

It is used for primary grout placement as a hydraulic seal in well bores and for secondary remedial operations like leak repairs.