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In the region I'm practising, post-installed anchors are considered as somewhat expensive system than cast-in-situ anchors. But, in my openion, there are number of advantages you can gain when using post-installed anchors. Advantages * No need to do tedious setting outs. Just do the casting and...

Hello All, Recently I encountered this issue. Is pre-cast beams with 2.5" thick overlay suitable for a flat accessible roof top? Will water-proofing work on this? Building is 100' long and 50' wide. Ther will be insulation and water proofing. Many thanks, KC

Many thanks! Clefcon

Folks, I am currently constructing my own house. I am thinking of having a cement rendered floor with Titanium finish. The common problem of this is hairline cracks. How can we control these cracks? Even after 5 days water ponding, cracks might appear, contractor says. What are the precautionary...

JAE, Many thanks! Clefcon

JAE, Yes, I'm thinking of rebuilding the joint on the top surface. There should be a better way than just plaster??? Many thanks, Clefcon

JAE, Sorry if this is confusing. That cracked beam is a long cantilevered beam. This is the isolation joint they had used.

Falks, Recently I visited a very long building in which structural engineer has allowed some isolation joints. Said joints had been perished due to unknown reason. I am looking for a suitable joint details for this. If someone could help me with this, it would be really appreciated. Clefcon

Thanks a lot.

Can somebody give me few names of good suppliers for the above? I'm working in Sri Lanka and we only have one supplier operating from India. Thanks, Clefcon

If this spans between two columns, punching shear will be a problem. All depends on your loading and depth of the beam. Most beams with small depths, probably you'll have doubly reinforced beams in which you need reinforcements to resist compression, every corner bar and each alternate bar in...

YS, Would like to know further on Petrosky Effect. Can you send me some links on this? Clefcon

Thanks a lot Stack. Clefcon

Dear All, Can somebody tell me where I can get following code in hard or soft format? TIA/EIA222G I am working in Sri Lanka so that I'm not that familier with US codes. Thanks in advance. Clefcon

dik, As far as I know abrasion resistance varies with regions or countries. Grade of concrete has very little effect on abrasion resistance. I.e. same grade of concrete in different countries have different abration resistance. It's abration resistance of agrregate which is decisive. People...

For the calculation of anchor bolt group shear capacity, ETAG Annex C suggests that only row of bolts that closes to the edge of concrete element will take the full shear load. Not to mention that the applied shear load direction plays a vital role in calculating the concrete shear capacity in...

Thanks all for valuable comments! Clefcon

Hello all, Usually, our slab thicknesses are 125mm to 225mm depending on the size of panels and in most domestic construction we use 150mm tk (6") slabs for toilet areas. Most of plumbing consultants are producing drawings showing 63mm outer diameter pipes (with some small ones) to go through RC...

Vanik, I have already ordered a copy of this book. VB, This book you have mentioned is not available with Amazon. Do you know any place from where I can buy this? Many thanks, clefcon

I am in the process of designing some water retaining structures including a swimming pool. Does anybody know where I can get some design and construction information with some design examples, preferably in BS standards? Web link, recommended text book etc. would help. Any useful information...