Engineered Ready Mix Concrete in Barnet
High-performance ready mixed concrete batched directly on your site in Barnet. Exact volumetric quantities, certified structural strengths from C10 to C45, and zero disposal waste.
At Ready Mixed Concrete Barnet, we engineer every batch to satisfy the highest standards of structural integrity, durability, and workability. By utilizing advanced computerized volumetric batching units, we blend pristine CEM I/II cement, clean graded aggregates, washed sharp sand, and precise water volumes right before your eyes in Barnet.
Standard Concrete Grades & Applications
Every construction application in Barnet demands specific compressive strength and environmental resistance ratings. Below is our complete British Standard mix design guide for residential, commercial, and civil groundworks:
| Designated Mix | Strength Class | Standard Slump | Ideal Structural Uses in Barnet |
|---|---|---|---|
| GEN 1 / C10 | 10 N/mm² @ 28 Days | S2 - S3 | Unreinforced strip footings, kerb backing, blindings, cavity filling, drainage encasement. |
| GEN 2 / C15 | 15 N/mm² @ 28 Days | S3 | Floor blinding layers, conservatory sub-bases, domestic patio sub-slabs, garden step foundations. |
| GEN 3 / C20 | 20 N/mm² @ 28 Days | S3 - S4 | Domestic garage bases, shed bases, internal unreinforced floor slabs, domestic retaining wall footings. |
| FND 2 / C25 | 25 N/mm² @ 28 Days | S3 - S4 | Single and multi-storey extension trench footings, reinforced raft foundations, underpinning, ground beams. |
| PAV 1 / C30 | 30 N/mm² @ 28 Days | S2 - S3 | Air-entrained mix for residential driveways, parking forecourts, agricultural hardstandings, external ramps. |
| PAV 2 / C35 | 35 N/mm² @ 28 Days | S2 - S3 | Heavy-duty industrial vehicle bays, commercial access yards, high-wear industrial flooring. |
| RC 35/45 (C40 - C45) | 40 - 45 N/mm² @ 28 Days | S3 - S5 | Pre-stressed beams, structural suspended decks, waterproof basements, civil infrastructure pours. |
Custom Admixtures & Performance Enhancers
Because our volumetric mobile mixers blend dry ingredients at your Barnet site, we can introduce specialized admixtures directly into the continuous mixing auger to achieve bespoke workability, curing speed, and long-term durability:
Polypropylene Structural Fibres
Micro and macro synthetic fibres disbursed uniformly throughout the concrete mix eliminate the need for crack-control steel mesh in standard slabs, reducing plastic shrinkage cracking by over 80% and increasing impact resistance.
Setting Accelerators & Retarders
During cold winter pours across North London, setting accelerators speed up early hydration to safeguard against frost damage. In hot summer weather, retarders extend open finishing time by up to 3 hours.
Waterproof & SBR Additives
Integral waterproofing admixtures chemically seal capillary pores, making the cured concrete completely impermeable to groundwater for subterranean basement retaining walls, swimming pools, and lift pits.
Plasticisers & Superplasticisers
Dramatically improves fluidity and self-levelling flow around congested steel reinforcement bars without adding excess water, preserving maximum structural compressive strength and eliminating honeycombing.
Slump Class Guide & Placement Workability
Slump represents the consistency, flow, and ease of placement of fresh concrete. We calibrate water-to-cement ratios on site to match your placement method:
| Slump Class | Slump Range (mm) | Workability Description | Recommended Placement Method |
|---|---|---|---|
| S1 (Semi-Dry) | 10 - 40 mm | Very stiff consistency | Kerb bedding, post hole setting, slipform pavers, dry tamp screeds. |
| S2 (Low Workability) | 50 - 90 mm | Firm, compactable mix | Sloped external driveways, unformed mass footings, power-floated slabs. |
| S3 (Medium Workability) | 100 - 150 mm | Standard workable flow | Direct chute discharge for trenches, home extension slabs, garden paths. |
| S4 (High Workability) | 160 - 210 mm | Highly fluid mix | Concrete pumping through ground lines and boom pumps, heavily reinforced beams. |
| S5 (Self-Flowing) | ≥ 220 mm | Flowing / self-compacting | Complex architectural formwork, dense rebar cages, underwater piling tremie pours. |
Need Technical Advice on Concrete Mix Selection for Barnet?
Our batching coordinators and technical staff are ready to recommend the ideal strength grade, slump class, and admixture package for your specific ground conditions. Call us on 0203 725 2601.