Methylene Blue Test 2
A Modified Methylene Blue or MMB for short, is an indicator for Clay and other expansive materials in quarried sands and aggregates.
Studies have shown that some types of clay in sand can adversely affect concrete quality leading to a variety potential problems in wet concrete. Issue that may occur are:
Here you can see a few pictures of the laboratory and its equipment including automatic cube crusher for testing concrete compressive strength, laboratory sieves and balances for testing aggregates etc.
In certain circumstances we can offer commercial concrete testing services of both concrete and aggregates when supplied by us. Should you have a need for this kind of service, please contact us.
Latest Technology
Grange have recently invested in the latest technology for this type analysis which involves the use of a Colorimeter. This equipment removes any subjectivity in the analysis and provides a indicative result for clay content. It also offers an indication of clay type, particularly if undertaken as a short series of tests to establish trending.
The Methylene Blue Test (MMB) is recognised by many of the major corporate companies in the concrete industry.
Grange are the first to offer this test in the Scottish Area on a commercial basis.
Due to the equipment used, this is a relatively fast test with results possible within an hour of sample receipt.
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Technical
Here you can find information on most of the concrete mixes we supply in accordance with BS8500-2: 2016, please contact us with any queries and our expert team will be happy to assist, you can find information and photographs of our two high output static plants based at Lockerbie and Dalbeattie.
