Which Concrete Mix for Your Kent Construction Project?

John Davis
25th April 2025
5 min read

Choosing the Right Concrete Mix for Kent Projects

Selecting the correct concrete mix is crucial for your Kent construction project's success. Different grades offer varying strength characteristics, with applications ranging from domestic driveways in Dover to commercial foundations in Canterbury.

Understanding Concrete Grades

Concrete grades indicate compressive strength after 28 days, measured in Newtons per square millimeter (N/mm²). Common grades used across Kent include:

C20 Concrete (20 N/mm²)

Applications in Kent:

  • Domestic driveways - Residential properties in Dover, Deal, Sandwich.
  • Garden paths and patios - Landscaping projects
  • Light-duty floors - Sheds, garages, workshops
  • Blinding layers - Foundation preparation

Characteristics: Cost-effective, suitable for non-structural applications, good workability

C25 Concrete (25 N/mm²)

Applications in Kent:

  • House foundations - Domestic extensions and new builds
  • Internal floors - Residential and light commercial
  • Retaining walls - Up to 1.2m high
  • Precast elements - Kerbs, drainage channels

Characteristics: Most popular grade, balances strength and cost, versatile applications

C30 Concrete (30 N/mm²)

Applications in Kent:

  • Commercial foundations - Office buildings, warehouses
  • External slabs - Loading bays, industrial floors
  • Structural elements - Beams, columns, heavy-duty applications
  • Highway works - A roads, roundabouts across Kent

Characteristics: Higher strength, longer service life, suitable for exposed conditions

Specialized Mixes Available in Kent

Fiber Reinforced Concrete

Polypropylene or steel fiber reinforcement reduces cracking and improves durability:

  • Industrial floors with heavy traffic
  • Suspended slabs
  • Repair applications

Rapid Hardening Concrete

Faster strength gain for time-critical Kent projects:

  • Winter construction
  • Fast-track commercial projects
  • Repair works requiring quick access

Environmental Considerations

Recycled Content Options:

  • 30% recycled aggregate concrete
  • Reduced cement content mixes
  • Local aggregate sourcing (Kent quarries)

Delivery Options Across Kent

Volumetric Mixing

Our volumetric trucks offer:

  • Fresh mixing on-site - Maximum 90-minute workability
  • Exact quantities - Pay only for concrete used
  • Mix adjustments - Change consistency on-site
  • Multiple grades - Different mixes in one delivery

Standard Ready Mix Delivery

Traditional mixer truck delivery with:

  • Up to 6m³ capacity
  • Pump hire available
  • Same-day delivery across Dover, Canterbury, Ashford

Concrete Calculator Guide

Typical Coverage (100mm thick slab):

  • 1m³ covers 10m²
  • Domestic driveway (30m²) = 3m³
  • Single garage base (20m²) = 2m³
  • Extension foundations vary by design

Ordering Process

  1. Determine grade required - Consult structural engineer if unsure
  2. Calculate quantity needed - Include 5-10% wastage
  3. Check site access - Mixer truck dimensions and reach
  4. Book delivery slot - Morning deliveries recommended

Quality Assurance

All Macavis concrete mixes supplied across Kent meet:

  • BS EN 206 standards
  • QSRMC (Quality Scheme for Ready Mixed Concrete) certification
  • Regular independent testing
  • Full traceability documentation

Expert Advice Service

Unsure which concrete grade suits your Kent project? Our experienced team provides:

  • Free specification consultations
  • Site access assessments
  • Delivery scheduling advice
  • Technical data sheets

Need ready mix concrete in Kent? Contact Macavis Group for expert advice and competitive pricing on volumetric and ready mix concrete delivery across Dover, Canterbury, Ashford and all Kent locations.