Recent content by Uduak Wilson

Thank you

Self compacting concrete designed with 10 mm max aggregate size is the answer.

I will love to go for a bond if the following is well taken care of: Good salary with provision for annual or biannual upward review If the working environment is satisfactory If the job will enhance my professionalism If the safety records of the company is good If the company have a chance of...

Thank you for the document

There is no attachment.Can you attach the files ?

Wearing harnes belt is very safe,but this man in your picture is committing suicide

Chair top support

Yes you can use a crushed aggregate sand for concrete, but you need to embark on a trial mix to check the effect on water demand and strength,since the dust con/fine content is higher with crushed stone sand, and of course you will need to increase your cement content to cope with increase...

Most likely caused by slow hydration resulting from overdosage of water reducing/ plasticising admixture.That it is only the column base that is affected, is that the the mix of the admixture was not homogeneous.

Ribbed steel bars introduces air into the concrete during tamping, and the result of the slump test is affected eventually by the air voids.

What you call standard in your place may not be standard in another.For you to know or determine the volume of your head pan and wheelbarrow,you will have to fill in them a measured amount of water. If the water required to fill your headpan is 25 litres, and amount of water filling your wheel...

Asking of chemical admixtures, we have the water reducing, plasticising, water-reducing/plasticising ,waterproofing, superplasticising/water reducing, air -entrainment , accelerating and retarding admixtures etc. There are many more, depending on what you want to achieve.

You will have to carry out non destructive tests,such as rebound hammer, and if the client argues that the rebound hammer will show only the surface hardness, you go ahead to do pulse velocity or coring.But note that in coring,there is no universally accepted means of interpreting the...