Concrete

Cracking in a bridge parapet attributed to AAR

Sandberg have been continuously involved with the diagnosis of AAR since before the earliest UK mainland example was publicised more than twenty years ago. This experience embraces alkali-silica, alkali-silicate and alkali-carbonate reactivity and extends to over thirty countries.

Cracking adjacent to a joint in a concrete hard standing

Sandberg provides specialist advice at the design stage that can prevent many problems occurring during construction. New specifications can be prepared or existing ones reviewed, to optimise both durability and constructability.Concrete construction is becoming increasingly complex and the importance of producing structures that are both cost effective and durable has never been higher.

Concrete spalling caused by corrosion of reinforcing steel

Concrete durability is one of the most important considerations in the design of new structures and when assessing the condition of existing structures. Concrete construction is becoming increasingly complex and the importance of producing structures that are both cost effective and durable has never been higher.

An estimate of the in-situ strength of concrete may be required for several reasons: When an assessment of the in-situ concrete strength is needed during construction, when an existing structure is to be modified or redesigned, to assess structural adequacy when doubt arises about the compressive strength in the,...