Rock Crushing

Mobile Rock Crushing Contractor in Texas — On-Site Aggregate Production

DNT Construction operates mobile impact crushers and screen plants directly on Texas construction sites, producing road base, select fill, gravel bedding, and recycled concrete and asphalt aggregate on demand. By crushing on-site, DNT eliminates the cost of hauling demolition material off for disposal and trucking quarry material back in — a round-trip that can add $5 to $15 per ton on Texas sites depending on haul distance.

DNT's crushing operation integrates with its mass grading scope, with the crusher working adjacent to the active earthwork area and crushed material re-handled directly to the base course placement operation by DNT's own equipment.

Materials We Crush & Products We Produce

• Input materials: native limestone and caliche, demolished concrete, reclaimed asphalt pavement (RAP)
• Products: TxDOT Item 247 flexible base, select structural fill, gravel pipe bedding, recycled concrete aggregate (RCA), coarse crushed stone
• All crushed material sampled and tested by the project's geotechnical engineer before placement
  
  

Why Developers and GCs Choose DNT for On-Site Crushing

Integrated Crush-and-Place — No Third-Party Haul Cycle

DNT self-performs both the crushing operation and the base course placement work. The crusher runs adjacent to the grading area, and crushed material is re-handled directly to paving by DNT's own dozers and motor graders. This eliminates the truck cycle that makes third-party crushing expensive — material never leaves the site until it's placed.

200–400 Tons Per Hour — Large-Volume Campaigns

DNT's mobile impact crusher produces 200 to 400 tons per hour on Texas limestone and recycled concrete under normal operating conditions. On a standard 10-hour production day, that's 1,500 to 3,500 tons of finished aggregate — enough to run large-volume crushing campaigns of 50,000+ tons within a normal civil sitework schedule window.

Meets TxDOT and Municipal Specifications

Native Texas limestone crushed to a well-graded gradation meeting TxDOT Item 247 is widely accepted as flexible base for road and parking lot construction across the state. Recycled concrete aggregate (RCA) is accepted for base course under most Texas municipal and private specifications when gradation and fines content are within spec limits. All material is tested by the project's geotechnical EOR before placement.

Crush-vs.-Haul Analysis at Bid

The economics depend on site-specific variables: volume of material to dispose of, volume of base course needed, disposal costs, and quarry material pricing at the time of construction. DNT's estimating team will run a crush-vs.-haul comparison during preconstruction using the project's earthwork quantities and current local pricing so you can make an informed decision before bid day.

Frequently Asked Questions

What equipment does DNT use for on-site rock crushing?

DNT Construction operates mobile impact crushers and screen plants that are transported to the project site and set up within the active grading area. Mobile impact crushers process rock, concrete rubble, and reclaimed asphalt pavement (RAP) into sized aggregate. Screen plants separate crushed product into specification gradations — road base, gravel bedding, and reject material. Equipment is self-owned by DNT and mobilized from the nearest of DNT's three Texas offices.

What materials can DNT process and what products does it produce?

DNT can process native limestone and caliche rock excavated during site grading, demolished concrete from existing structures and flatwork, and reclaimed asphalt pavement from existing parking lots and roads. Products include TxDOT Item 247 flexible base, select structural fill, gravel pipe bedding, recycled concrete aggregate (RCA), and coarse crushed stone. Gradations are adjusted through screen plant configuration to match the project's geotechnical specification.

When does on-site rock crushing make economic sense?

On-site crushing becomes economically attractive when a site has significant volumes of material to dispose of and also needs road base or fill that would otherwise be imported from a quarry. The savings from avoided disposal cost and avoided imported material typically offset the crushing plant mobilization and operating cost when crushed volumes exceed approximately 5,000 to 10,000 tons. DNT's estimating team can run a crush-vs.-haul comparison during preconstruction using project earthwork quantities and local pricing.

Does on-site crushed material meet TxDOT or local municipality base course specifications?

Yes, when processed to the correct gradation and Atterberg limit requirements. Native Texas limestone crushed to a well-graded gradation meeting TxDOT Item 247 is widely accepted as flexible base. Recycled concrete aggregate (RCA) is accepted for base course under most Texas municipal and private specifications when gradation and minus-200 fines content are within spec limits. All crushed material placed as base course or structural fill is sampled and tested by the project's geotechnical engineer of record.

What is the production rate of DNT's mobile crushing operation?

Typical throughput on Texas limestone and recycled concrete runs 200 to 400 tons per hour under operating conditions. On a standard 10-hour production day, DNT's crushing operation can produce 1,500 to 3,500 tons of finished aggregate depending on material characteristics and target product mix. These rates allow large-volume crushing campaigns of 50,000 tons or more to be completed within a normal project schedule window.

Related DNT Construction Services

• Mass Grading and Earthwork — Crushed material is placed directly as road base and structural fill by DNT's own grading crews.
• Data Center Civil Sitework — On-site crushing supports data center civil scopes where large volumes of excavated rock need processing.
• Wet Utility Installation — Gravel pipe bedding produced on-site by DNT's crusher for sanitary sewer and water main installation.