In-Place Concrete
Strength, Measured
in Real Time.

ConcreteAI monitors, visualises, and validates the early-age strength and temperature development of job-site concrete — for shorter structure cycle time and reduced embodied carbon.

SmartHub on site
SmartHub · Live Reading
LIVE
32.4
MPa
41°
CONCRETE TEMP
18h
AGE
Strength gainTarget: 35 MPa
The Challenge

The questions every site team faces —
and why standard methods fall short

Determining when concrete has achieved sufficient strength is one of the most consequential decisions on any construction site, yet it is typically made through a laborious and tedious process that does not reflect actual site conditions.

?Do concrete samples really represent the actual in-situ concrete strength?
?The standard requires a minimum wait of 7 days, or until target strength is reached — how is that information obtained in time to act on it?
?Access to testing services is limited — how can early-age cube tests be reduced so construction schedules are not held up?
?Cube sampling is labour-intensive and time-consuming. Is there a more efficient method?
Compressive Strength — Core Test vs Normal-Cured Samples
G60 · 60% GGBS · 1×1×1 m trial block · Singapore
Core test
Normal-cured samples
Core Day 2: 51.28 MPa, Sample Day 2: 29.10 MPa. Core Day 4: 55.08 MPa, Sample Day 4: 44.20 MPa.

At Day 2, in-situ strength was 76% higher than sample results.

In early ages, in-situ concrete develops strength more rapidly due to the heat of hydration generated within the structure. When early-age decisions are most critical, sample results do not reflect what is actually happening on site.

Relying on sample results at early ages means the site team is making decisions on data that significantly underrepresents actual in-situ strength — leading to unnecessary waiting time and schedule delays.

The Solution

Continuous in-situ strength data,
from the moment of casting.

Continuous strength monitoring directly from the structure — based on the maturity method per ASTM C1074.

Probe placement
Pre-pour
Probe placement
Cast-in probes fixed at critical monitoring points before the pour
SmartHub logging
During pour
SmartHub logging
Records temperature–time history continuously from the probes
Wireless gateway transmission
Live
Wireless to platform
Gateway uploads data continuously to the cloud dashboard
Live strength dashboard with alert
Ongoing
Live strength dashboard
Real-time strength curve, with alert when target strength is reached
SmartCure verification
Optional
SmartCure verification
Cubes cured at matched temperature — physical test evidence
Optional
SmartHub
SmartHub
Real-Time Strength Monitoring

Monitors concrete strength continuously from within the structure — no waiting for lab results, no manual sampling. Connects to four monitoring points per device, with data streamed to the platform 24/7 and configurable alerts when target strength is reached.

MethodMaturity method — compressive strength estimated from the temperature–time history of the concrete. A 28-day calibration is required per mix design.
Standards: ASTM C1074
Questions about approval in a specific market? Contact us for details.
Learn more about SmartHub →
Physical Validation Layer
SmartCure
SmartCure — Temperature-Matched Curing

Samples are cured automatically at the same temperature as the in-situ concrete, producing destructive test results that confirm actual in-situ strength conditions.

MethodTemperature-Matched Curing (TMC) — the curing tank automatically replicates the internal temperature profile of the structure.
Standards: BS 1881:130 · SS EN 13670:2022
Questions about approval in a specific market? Contact us for details.
Suitable for
📈
Building confidence before transitioning to full real-time monitoring
🧪
Projects with ready access to testing facilities
Projects where physical test evidence is required alongside real-time data
Learn more about SmartCure →
Key Benefits
⏱️
Optimised Casting Cycle Time
Average 30% reduction in casting cycle time — no waiting on sample results to proceed.
Better Quality Assurance
24/7 live monitoring with automated alerts — preventing premature early-age activities.
🌱
Reduced Embodied Carbon
Avoid over-specifying concrete grade, help projects meet green targets, and enable adoption of low-carbon materials like GGBS.
🧪
Reduced Early-Age Sample Testing
Just-in-time decisions cut lab turnaround time, sampling labour, and associated costs.
Ready to discuss an upcoming project?
ConcreteAI will assess and provide a recommended monitoring plan within 2 working days.
Book a Demo →
Applications

Concrete applications across
the built environment

Post-Tensioning

Stress tendons at actual in-situ strength, reducing the risk of premature stressing and shortening PT slab cycles.

Case study coming soon
Building and High-Rise

Accelerated formwork stripping and floor climbing based on real strength data. On a 48-storey project, saving 1 day per floor compounds to 1–2 months of programme gain.

Case study coming soon
Precast Production

Faster demoulding, lifting, and transport increases bed turnover without the need to increase concrete grade.

Case study coming soon
Airport and Infrastructure

Return taxiways and hardstandings to service sooner. Documented QA records meet the requirements of airport and infrastructure authorities.

Case study coming soon
Top-Down and Substructure

Reduces waiting time between excavation layers. On completed projects, casting cycle reductions of 40% have been achieved, avoiding costly high early-strength concrete upgrades.

View case study →
Highway and Transport

Precast segments produced faster, enabling earlier road access and reducing programme risk on time-sensitive infrastructure projects.

Case study coming soon

Trusted on projects with

LTAJTCCDLKajimaHyundaiObayashiChye JooDelmonSamwoh

Sample ROI Calculator

Enter project details to estimate potential savings.

Cube tests saved
120
cubes
Each early-age set = 3 cubes, fully eliminated with real-time monitoring
Estimated time saved
2856
days
Average 30% cycle time reduction per pour (range: 20–40%)
Potential cost avoided
10,000
concrete grade premium
~$5/m³ premium for high-grade concrete — indicative only
Carbon saving opportunity
30,000
kg CO₂e avoided
By avoiding over-specification and enabling low-carbon mixes (e.g. GGBS) — ~15 kg CO₂e/m³ indicative saving

Estimates are indicative. Actual results depend on project conditions and monitoring scope.

How the estimate works
🧱
Cube tests saved
Each early-age set = 3 cubes, fully replaced by real-time strength data.
⏱️
Time saved
Based on 20–40% cycle time reduction per pour, observed across completed projects.
💰
Cost avoided
Grade premium savings from avoiding over-specification — ~$5/m³ indicative rate.
🌱
Carbon saving
Real-time strength data enables adoption of low-carbon mixes (e.g. high-GGBS) without schedule risk. ~15 kg CO₂e/m³ indicative saving from avoiding over-specification.
Want a project-specific estimate?

Share your project details and ConcreteAI will provide a tailored monitoring plan and ROI assessment within 2 working days.

Book a Demo →
Product and Solution Support

A comprehensive solution
from start to finish.

🎓
On-Site Training and Onboarding

At the first pour, until the team is proficient.

📋
Best Practices and Implementation Guidance

Sensor placement, monitoring plans, implementation steps.

👷
Dedicated On-Site Technical Support

Named engineer per project, available for site attendance and coordination.

📊
Report Compilation and Concrete Insights

Auto-generated compliance report per pour.

On-site people committed to project success.
Book a Demo →
Frequently Asked Questions

Technical and implementation
questions, answered.

What does the ConcreteAI sensor monitor?+

The SmartHub monitors concrete temperature in real time from within the structural element. This data is correlated with compressive strength using the maturity method — producing continuous in-situ strength readings without physical testing at each time point.

Is this method approved in Singapore and other markets?+

Yes. Both the maturity method (SmartHub) and temperature-matched curing (SmartCure) are supported by established standards.

Singapore — SmartHub (Maturity Method)

SS 78: Part B1:1992 (2018)SS EN 13670:2022

Singapore — SmartCure (Temperature-Matched Curing)

BS 1881:130

SmartCure is also supported by the BCA circular on the use of temperature-matched curing of concrete specimens. View circular →

For other markets, ConcreteAI advises directly on local standards applicability. Markets referencing BS, EN, and ASTM standards are broadly compatible.

How is compressive strength measured in real time?+

Concrete strength is determined using the maturity method per ASTM C1074 and EN 13670. The maturity method captures the relationship between concrete temperature, time, and strength gain. Every unique mix design has its own strength–maturity relationship — a 28-day calibration programme is required per mix design before deployment.

What structure types and mix designs are compatible?+

All conventional structure types are supported — walls, slabs, columns, beams, viaducts, hollow-core elements, and pile caps. Both cast-in-situ and precast applications are compatible. All common mix designs are supported, including those incorporating fly ash, GGBS, and silica fume.

How many monitoring points are required per element?+

A minimum of two monitoring points per structure or casting area is recommended — one at the location of maximum stress, and one at the location of minimum temperature or minimum expected strength, for a conservative reading. A redundant sensor is placed at each critical location. ConcreteAI coordinates with the project team and engineer to finalise a monitoring plan prior to deployment.

Are SmartHub and SmartCure separate products?+

Yes — SmartHub and SmartCure are separate products designed to work together on the same platform. SmartHub provides real-time in-situ monitoring; SmartCure provides temperature-matched destructive cube validation. Both can be deployed independently, though most projects benefit from running both in parallel — using SmartCure results to build confidence in SmartHub data over time.

Find out how ConcreteAI applies
to an upcoming project.

Book a Demo →Send an Enquiry