Sulphate-bearing ground and concrete

Sulphates in the ground can attack ordinary concrete. Ground investigation may classify the site as sulphate-bearing; the structural engineer will specify sulphate-resisting cement or other measures. This affects foundation concrete specification.

Most teams review sulphate-bearing ground and concrete when live project risk needs turning into a clear technical decision with practical next steps.

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When you might need this

Teams usually investigate sulphate-bearing ground and concrete when early warning signs start affecting reliability, compliance, or project timelines. This is often the point where decision makers move from observation into scoped technical action.

What often triggers action

The symptoms below are the most common triggers we see before diagnosis and repair planning.

• Sulphate content in ground investigation
• Design specifies sulphate-resisting concrete
• Building control may require it
• Brownfield or fill with sulphate
• Specification for foundation concrete

What to expect from the work

Ground investigation and design specify the concrete class. We order and place concrete to the specification.

How we approach the fix

We use the concrete specification in the design — sulphate-resisting or other as specified. We provide concrete tickets and certification.

Cost and complexity factors

Cost and complexity usually depend on access constraints, total scope, existing condition, and whether related works need to be coordinated in the same programme window.

How delivery is structured

We keep delivery structured so scope, sequencing, and sign-off remain clear.

1. Step 1: Initial assessment

   What this step delivers: Root cause and scope are confirmed.

2. Step 2: Method planning

   What this step delivers: Practical repair strategy is agreed.

3. Step 3: Delivery and verification

   What this step delivers: Work is completed and validated.