Technical Concrete Formulations & Grades
Engineered structural batching using calibrated British Standard cement, washed sharp sand, and graded 20mm aggregates for groundworks and civil projects in Richmond upon Thames.
Structural Grade Breakdown
Lean Mix & Blinding (C10 / GEN 1)
Low-cement ratio for unreinforced fill. Forms a clean, level sub-base over raw clay to protect steel reinforcement during foundation construction.
Domestic Structural (C20 / GEN 3)
Standard residential formulation for single-storey building extensions, garden wall footings, greenhouse slabs, and post securing.
Engineered Footings (C25 / FND 2)
High-strength foundation blend formulated to resist sulphate ground attacks. Standard choice for building control approval in trench digs.
Reinforced Pavement (C30 / PAV 1)
Frost-resistant external concrete engineered for commercial vehicle crossovers, double garage floors, and heavy-duty reinforced raft slabs.
Water-Resistant Structural (C35 & C40)
Hydrophobic crystalline admixtures reduce permeability, safeguarding subterranean basement walls against Thames groundwater pressure.
Polymer Floor Screeds
Fine aggregate sand-and-cement screed designed to encapsulate underfloor heating pipes and deliver a dead-flat substrate for tiling or timber.
Performance Admixtures & Quality Control
Polypropylene Micro-Fibres
Distributed throughout the batch to dramatically reduce plastic shrinkage cracking and improve impact resistance on surface slabs.
Set Retarders & Accelerators
Adjust hydration timing to grant finishing crews extended working windows in summer heat or accelerate strength gain in colder weather.
Water-Reducing Plasticisers
Increase flowability to encapsulate congested rebar cages without compromising final 28-day compressive strength.
Need Help Selecting the Right Structural Grade?
Our batching technicians assist with structural engineer drawings, slump specifications, and volume calculations. Speak with a specialist at 07593 083651.