Self-Compacting Concrete Mix Design
(SCC Mix Design)

Engineered self-compacting concrete mix design that flows and consolidates under its own weight without vibration — ideal for congested reinforcement, complex formwork and precast applications.

Overview

What is the Self-Compacting Concrete Mix Design?

Self-Compacting Concrete (SCC) is a highly flowable, non-segregating concrete that fills formwork and encapsulates reinforcement under its own weight without any mechanical vibration. SCC achieves its unique rheological properties through a combination of high paste volume, SCMs, PCE superplasticisers and viscosity modifying agents (VMAs).

At Global Lab, SCC mix designs are developed as per EFNARC 2005 Guidelines and IS 10262:2019. Fresh SCC is characterised by three key properties — flowability (slump flow, T500), passing ability (L-box, J-ring) and segregation resistance (GTM screen stability, V-funnel) — all tested in our NABL-accredited laboratory.

Full Fresh Property Testing

Slump flow, T500, L-box, J-ring, V-funnel, GTM screen stability all tested.

No Vibration Required

Self-consolidates under gravity — eliminates vibration-related defects and labour.

EFNARC Classification

Mix classified per EFNARC viscosity (VS) and flow (SF) classes for application.

Segregation Resistance

Viscosity and cohesion optimised to prevent bleeding and segregation during flow.

NABL Certified Reports

Complete SCC mix design report on NABL-accredited letterhead.

Precast & In-Situ

Mix designs for both precast factory and in-situ SCC applications.

Test in Action

Self-Compacting Concrete Mix Design — Site Images

SCC Test on Site

SSC

Test on SCC

Test Procedure

How the Self-Compacting Concrete Mix Design is Conducted

1

Material Testing & Selection

Cement, fine aggregate, coarse aggregate (max 16mm for SCC), SCMs, PCE superplasticiser and VMA are tested individually.
2

Paste Volume & W/P Ratio

High paste volume (38–42%) and low W/P ratio (0.28–0.38) calculated for target strength and flowability.
3

PCE & VMA Optimisation

Superplasticiser and VMA dosages optimised through mini-slump and Marsh cone tests.
4

Full Trial Mix

Fresh SCC testing: slump flow, T500, L-box (H2/H1 ≥0.8), J-ring, V-funnel (T5min), GTM sieve stability. Cube casting at 7, 28 days.
5

EFNARC Classification & Report

Mix classified per EFNARC SF and VS classes. Final NABL mix design report issued after 28-day strength confirmation.

Standards & Specifications

Applicable Test Standards

Standard	Title	Scope	Type
EFNARC 2005	The European Guidelines for Self-Compacting Concrete — Specification, Production and Use	SCC Standard	EFNARC
IS 10262:2019	Guidelines for Concrete Mix Design Proportioning	Mix Design	Indian Standard
BS EN 12350-8	Testing Fresh Concrete — Self-Compacting Concrete — Slump Flow Test	Fresh SCC	British Standard
BS EN 12350-12	Testing Fresh Concrete — Self-Compacting Concrete — J-Ring Test	Passing Ability	British Standard

Applications

Where is the CAPO Test Used?

Heavily congested RCC columns and core walls in high-rise buildings

Precast concrete elements — beams, columns, façade panels and tunnel segments

Repair and rehabilitation pours in confined spaces with restricted access

Bridge deck overlays and parapet walls with dense reinforcement

Industrial foundations with complex geometry and dense rebar layouts

Architectural concrete elements requiring defect-free surface finish

Why Choose Global Lab

Our Advantages

NABL Accredited ReportsLegally valid SCC mix design certificates for all structural consultants.

Full EFNARC Test SuiteAll 6 fresh SCC tests conducted for complete rheological characterisation.

Actual Project MaterialsMix designed on your specific materials — not generic EFNARC examples.

Autovity Digital PlatformAccess all SCC mix data and test records digitally.

SCC ExpertiseExperienced in SCC mix design for precast, infrastructure and high-rise projects.

Site SupportEngineers available for first SCC pour quality monitoring on site.

Self-Compacting Concrete Mix Design(SCC Mix Design)