Appreciate responses to my query.
The water in question shall be used for mixing concrete only. We have to follow BS codes on the project. BS spec/code requirement for mixing water is "no visible traces of oil and grease in mixing water". Folks on the site did oil and grease test per ASTMD3921...
We have a situation. Equipments (compressor, generators) would be supported on "piled raft" foundation. The soil is really bad on the site. Rafts were not good enough for controlling the settlement,hence the wise people on the project made the decision to go for piled raft. Couple of facts:
1)...
Ron,
Thanks for your response. We have slow-reacting consituents in fine aggregate like quartzite. This simply excludes ASTM C 289 testing. The initial petrographic report did ask for additional tests for aggregate reactivity.
The current fine aggregate reactivity results report does have a...
The pre-pour test results per ASTM C 1260 is coming as 0.14%. The specimen prepared was without flyash. This value is beyond 0.10%, which is the acceptable limit. The concrete pour is coming up in less than a month. The actual concrete mix will have flyash in it. Is there a way 0.14% value could...
We tested the fine aggregates earlier for the reactivity test per ASTM standards, and it passed. Its been couple of months since this test was done.
Now we are about to pour the concrete,and it so happens that the same fine aggregate is failing the reactivity test. The fine aggregate was...
We tested the fine aggregates earlier for the reactivity test per ASTM standards, and it passed. Its been couple of months since this test was done.
Now we are about to pour the concrete,and it so happens that the same fine aggregate is failing the reactivity test. The fine aggregate was...
