In many urban infrastructure projects, high-quality crushed stone materials are essential to ensure stability, durability, and performance. One such project involves constructing a 10,000 m² parking lot, where crushed granite was chosen for its strength, clean look, and excellent drainage capacity. To meet the demand for precision and efficiency, a local contractor opted for a mobile stone crusher machine to produce and supply the required materials. This decision not only reduced operational costs but also increased flexibility on-site.
This article explores what crushed granite is used for, how granite crushing is done, the types of crushers involved, and why the mobile stone crusher machine is an ideal solution for contractors working on such large-scale construction projects.
What Is Crushed Granite Used For?
Crushed granite is a processed material made by crushing large granite rocks into smaller, usable sizes. What is crushed granite used for? It is widely used in construction due to its hardness, angular shape, and aesthetic appeal. In the context of the 10,000 m² parking lot, crushed granite was used as the base layer and sub-base for the pavement system.
Generally, crushed granite is used for:
Road base and sub-base materials
Parking lots and driveways
Railway ballast
Drainage systems
Decorative landscaping and hardscaping
Concrete aggregate
For parking lots specifically, crushed granite offers excellent load-bearing capacity, reduces surface runoff due to its permeable nature, and adds a clean, professional finish to the site.
Why Granite Crushing Matters in Projects Like Parking Lot Construction
Granite crushing refers to the process of breaking down raw granite stones into specific sizes using mechanical crushers. Granite is known for its high compressive strength (typically 100–300 MPa), making it an ideal material for heavy-duty construction projects—but it also means that it requires robust machinery to crush effectively.
In the parking lot project, the contractor needed different gradations of granite—primarily 0–20 mm for the base layer and 20–40 mm for drainage. Instead of sourcing pre-crushed granite from a remote quarry (which would have increased transportation costs and delivery times), the contractor brought in a mobile stone crusher machine to crush granite on-site. This enabled real-time production based on demand, reduced material loss, and improved quality control.
Types of Crushers Used for Granite Crushing
When it comes to granite crushing, not all crushers are created equal. Granite’s hardness and density require powerful and wear-resistant equipment. The most commonly used types of crushers for processing granite include:
1. Jaw Crushers
Ideal for primary crushing
Breaks large granite blocks (up to 1000 mm) into smaller pieces
Output size adjustable, typically 100–300 mm
2. Cone Crushers
Suitable for secondary and fine crushing
Handles high-hardness materials efficiently
Produces uniform, cubical aggregates
3. Impact Crushers
Used for shaping or creating finer aggregates
Less suitable for hard granite unless specially designed
Offers excellent control over end product shape
4. Mobile Crushers (Combined Systems)
Combine jaw + cone or jaw + impact crushers in a single mobile unit
Integrated screening systems for graded output
Quick to deploy and relocate between sites
In the case of the parking lot project, a mobile crusher equipped with a jaw crusher for primary breaking and a cone crusher for secondary crushing was used. This combination ensured both high throughput and precise control over the final particle size.
Advantages of Using a Mobile Stone Crusher Machine
Deploying a mobile stone crusher machine on-site offers several key advantages for contractors, especially for medium to large projects like a 10,000 m² parking lot:
Reduced Transport Costs: Instead of hauling granite from a distant quarry, raw material is crushed on-site.
Improved Efficiency: The contractor can produce required materials as needed, eliminating storage and excess production.
Flexibility: Mobile units can be moved around the site or between job locations with minimal setup time.
Cost-Effective: Despite higher initial investment, mobile crushers save on fuel, labor, and logistics over the project duration.
Environmental Benefits: Less transportation reduces carbon emissions and noise pollution in residential zones.
In this project, the mobile crushing plant processed over 3,500 tons of granite over a two-week period. The contractor was able to meet tight deadlines without relying on external suppliers, while also maintaining consistent material quality.
Integration with Screening and Grading
A key component of the mobile stone crusher machine used in the project was the integrated vibrating screen. This allowed the contractor to simultaneously crush and sort granite into different sizes:
0–5 mm for bedding layers
5–20 mm for compaction layers
20–40 mm for drainage
Oversized materials were re-circulated for secondary crushing
This closed-loop system enhanced productivity and ensured zero waste. The client was especially pleased with the visual quality of the surface layer, which used fine crushed granite for a smooth yet textured finish.
For contractors involved in infrastructure or commercial development projects, mobile crushing solutions are becoming increasingly popular. In this case, a mobile stone crusher machine proved to be the perfect tool for producing high-quality crushed granite efficiently and on demand. By understanding what crushed granite is used for, the types of crushers suitable for granite, and the benefits of granite crushing on-site, contractors can optimize both time and cost while delivering exceptional results.
Whether you’re building a parking lot, road, or commercial site, consider how mobile crushing can transform your operations and give you a competitive edge in today’s fast-moving construction environment.