Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together
MOBILE CRUSHERS
Stationary Crushers
Grinding Mills
Accessory Equipment
OUR
Applications
LATEST
NEWS
Limestone powder brings benefit to concrete mixing plant
Another Milestone for Liming Heavy Industry 3/7/2026
We are honored to be recognized as one of the Top 10 Advanced Organizations in Standardization Work in China's building materials machinery industry.
This achievement reflects nearly 40 years of innovation, almost 300 patents, and our active role in developing 20+ national and industry standards.
For our customers, it means more than an award—it means proven technology, reliable quality, and equipment built to international standards.
At Liming Heavy Industry, we will continue providing efficient, intelligent, and sustainable solutions for crushing, sand making, and mineral processing projects worldwide.
📩 Looking for a reliable partner for your next project? Contact us today!
How to Choose the Right Aggregate Gradation for Concrete Production 26/6/2026
Aggregate accounts for approximately 60% to 80% of the volume of concrete, making it one of the most important materials in construction. While aggregate size often receives the most attention, aggregate gradation is equally important because it directly influences concrete strength, workability, durability, and cement consumption.
A properly graded aggregate can improve concrete performance while reducing production costs. This article explains what aggregate gradation is, why it matters, and how crushing plants can produce high-quality graded aggregates.
Aggregate gradation refers to the distribution of particle sizes within an aggregate sample.
Instead of containing particles of only one size, well-graded aggregate includes a balanced mixture of different particle sizes that fit together efficiently.
Good gradation reduces the amount of empty space (voids) between particles, allowing concrete to become denser and stronger.
Proper aggregate grading provides several benefits:
Higher concrete compressive strength
Improved workability
Lower cement consumption
Reduced segregation
Better pumpability
Improved durability
Lower shrinkage and cracking
Poor gradation often results in excessive cement demand and inconsistent concrete quality.
Characteristics:
Wide range of particle sizes
Low void ratio
Excellent particle packing
Applications:
Ready-mix concrete
Bridges
High-rise buildings
Infrastructure projects
Characteristics:
Most particles are similar in size
Higher void content
Applications:
Drainage systems
Railway ballast
Filter layers
Characteristics:
Certain particle sizes intentionally omitted
Applications:
Specialized concrete mixes
Decorative concrete
Asphalt mixtures
Typical concrete mixtures may include:
| Aggregate Type | Typical Size |
|---|---|
| Manufactured Sand | 0–5 mm |
| Fine Aggregate | 5–10 mm |
| Coarse Aggregate | 10–20 mm |
| Large Aggregate | 20–31.5 mm |
The exact combination depends on structural requirements and local construction standards.
A modern aggregate plant controls gradation through multiple stages.
Equipment:
Jaw crusher
Purpose:
Reduce large rocks into manageable sizes.
Equipment:
Hydraulic cone crusher
Purpose:
Produce uniform intermediate-sized aggregates with minimal flaky particles.
Equipment:
VSI crusher
Purpose:
Improve particle shape and produce high-quality manufactured sand.
Equipment:
Multi-deck vibrating screens
Purpose:
Separate aggregate into multiple commercial sizes while recirculating oversized material.
Several operational factors influence final gradation:
A smaller CSS generally produces finer material, while a larger setting increases coarse aggregate output.
Proper screen selection ensures each aggregate product meets specification.
Modern crushing chambers improve particle size consistency.
Consistent feeding helps maintain stable gradation throughout production.
Operators can improve aggregate grading by:
Using multi-stage crushing
Maintaining stable feed conditions
Replacing worn liners promptly
Selecting appropriate screen media
Regularly monitoring particle size distribution
Automation systems can further improve consistency by adjusting crusher settings in real time.
LIMING Heavy Industry supplies complete aggregate production systems, including:
Jaw crushers
Hydraulic cone crushers
VSI sand making machines
Vibrating screens
Mobile crushing plants
Intelligent control systems
Our engineering team designs customized solutions that produce high-quality aggregates with consistent gradation, high productivity, and low operating costs.
Aggregate gradation is one of the key factors determining concrete quality and production efficiency. By combining the right crushing equipment, screening technology, and process design, producers can manufacture aggregates that meet strict construction standards while reducing costs and increasing profitability.
A well-designed crushing and screening plant is the foundation of consistent aggregate gradation and long-term business success.
Aggregate Size Chart Explained: Crushed Stone Sizes and Their Construction Applications 18/6/2026
Aggregates are the backbone of modern construction. Whether used in concrete production, asphalt paving, road construction, railway ballast, or infrastructure projects, selecting the correct aggregate size is critical for achieving the required strength, durability, and workability.
Different countries and regions may use different naming systems, but aggregate products are generally classified by particle size. Understanding these specifications helps contractors, quarry operators, and crushing plant owners produce materials that meet market demand.
This guide introduces the most common aggregate sizes and their applications in construction projects.
Aggregate size directly affects:
Concrete strength
Workability and pumpability
Asphalt performance
Drainage characteristics
Material compaction
Construction costs
Producing the correct aggregate gradation is one of the most important objectives of a crushing and screening plant.
Also known as:
Crushed sand
Artificial sand
M-sand
Applications:
Ready-mix concrete
Mortar production
Plastering
Block manufacturing
Characteristics:
Fine particle size
Controlled gradation
Increasingly replacing natural river sand
Also called:
Small gravel
Fine stone chips
Applications:
Concrete products
Pavement construction
Decorative landscaping
Characteristics:
Good filling performance
Improves concrete density
One of the most widely used aggregate sizes.
Applications:
Reinforced concrete
Commercial buildings
Bridges
General construction
Characteristics:
Excellent balance of strength and workability
High market demand worldwide
Applications:
Foundations
Heavy concrete structures
Dam construction
Large infrastructure projects
Characteristics:
High load-bearing capacity
Reduced cement consumption
Applications:
Railway ballast
Drainage systems
Riprap and erosion control
Characteristics:
Excellent drainage performance
High structural stability
A typical aggregate crushing and screening plant may produce:
| Product Size | Common Name | Main Application |
|---|---|---|
| 0–5 mm | Manufactured Sand | Concrete, mortar |
| 5–10 mm | Fine Aggregate | Concrete products |
| 10–20 mm | Medium Aggregate | Building construction |
| 20–31.5 mm | Coarse Aggregate | Structural concrete |
| 31.5–40 mm | Large Aggregate | Foundations |
| 40–80 mm | Railway Ballast | Railways and drainage |
Many international projects specify aggregate sizes in inches.
| Size | Metric Equivalent |
|---|---|
| 1/4" | Approximately 6 mm |
| 3/8" | Approximately 10 mm |
| 1/2" | Approximately 13 mm |
| 3/4" | Approximately 20 mm |
| 1" | Approximately 25 mm |
| 1.5" | Approximately 40 mm |
Common export aggregate products include:
0–5 mm
5–10 mm
10–20 mm
20–40 mm
These sizes are widely used in Africa, Southeast Asia, the Middle East, and Latin America.
To produce different aggregate specifications, a crushing plant typically includes:
Equipment:
Jaw crusher
Function:
Crush large rocks into manageable sizes
Equipment:
Cone crusher or impact crusher
Function:
Produce medium-sized aggregates
Equipment:
Vibrating screen
Function:
Separate aggregates into different size fractions
Equipment:
VSI crusher
Function:
Produce high-quality manufactured sand
A properly designed crushing and screening process ensures consistent product quality and maximizes plant profitability.
High-quality aggregates require:
Proper particle shape
Consistent gradation
Low flaky particle content
Controlled dust content
Stable production process
Modern crushing plants increasingly use cone crushers and VSI crushers to improve aggregate shape and meet premium market requirements.
LIMING Heavy Industry provides complete aggregate production solutions, including:
Jaw crushers
Cone crushers
Impact crushers
VSI sand making machines
Vibrating screens
Mobile crushing plants
Our customized solutions help customers produce multiple aggregate specifications efficiently while reducing operating costs and maximizing profitability.
Understanding aggregate sizes and specifications is essential for producing construction materials that meet market requirements. From manufactured sand (0–5 mm) to railway ballast (40–80 mm), each aggregate size serves a specific purpose in construction and infrastructure development.
With the right crushing and screening equipment, producers can efficiently manufacture a wide range of aggregate products and improve the overall value of their operations.
Why
Choose Us
Passionate
Professional
Support
