When was mundic block used

Are you planning to buy a property in the South West that is more than 50 years old? Then there is a chance that your new home may contain mundic. Mundic is a term used for blocks that are comprised of waste mining material mixed with aggregates, such as beach sand. The blocks were mass produced from to , although in some areas the practice was carried out until the early s.

The blocks were commonly used in property construction in South West England, primarily in Cornwall, as other materials were not always readily available during that era. Cost was also of primary concern at the time. If you are looking to buy a property in the South West built between and , your mortgage lender will, in all probability, require you to have an up-to-date test carried out for mundic block.

This is because some of the materials used in mundic block can cause deterioration and weakening, which in turn will cause subsidence to the property. This will have a major effect on the eventual decision to lend you money for mortgage. Even if you are a cash buyer, and not planning to take out a mortgage, it may be a good idea to get this test completed to ensure that when it comes to selling the property on in the future, you will be able to do so at full market value.

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Bottom Price. Top Price. When is Mundic Testing required? What is Mundic Testing and how is it done? They try to cover the whole building by taking samples from the external walls, foundation, internal walls if possible , and even the chimney. The screening will identify that the concrete qualifies to Class A. Stage 3: Stage 3 test will measure the performance of the aggregate material using the core samples collected. Classification criteria before September Before September , there were three classifications of Mundic testing.

Class A: It means that the concrete is sound and in a satisfactory condition. Also, it should be kept protected from the inhibiting factors. The structure has potential problems in future. Class C: The structure is totally unsound, and it needs repair immediately.

Classifications criteria effective from September Class A1: It means the concrete is in satisfactory condition and sound. It is nothing but Class A of earlier criteria. Class A2: It means that the concrete is sound with adequate maintenance and protection. Class A3: It is the new entrant in the list. If there is a need for development of Stage 3 expansion testing which used to get designated as Class B earlier , then the structure will get Class A3 now.

Class B: There is no change in the criteria. If the structure and concrete appear sound externally with more than 30 percent problem aggregates, then it will be named Class B.

Class C: No change in this criteria as well. It means that the concrete is found in unsound condition after examination. Statistics There was a massive examination of properties held for Mundic Testing, and the results say that around 80 percent were passed in Class A1 of the new criteria or A in the old criteria after preliminary screening.

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