Is it proper method to lay steel pipes (500mm dia. x 9m long) by pre-fitting up every 2 pipes at ground level then lift and place into pipe trench then full weld. What are advantages and disdavantages. Any opinion would be very much appreciated.
Is laying 1 pipe at a time better than 2 pipes.?
I am reviewing a proposed concrete design mix, 'would like to inquire if there is any mention of minimum water cement ratio of 0.40 in ACI code, and what is the difference between w/c ratio per ACI and the adjusted w/c ratio in the design mix?
'appreciate any clarification on this.
We are currently studying strengthening of reinforced concrete tanks in a filtration plant and we are looking for food-grade fiber reinforcement material. Any info on where we can source out this material will be appreciated.
I am looking for standard detail of installing stone or marble ceiling. Appreciate if someone can provide standard detail or description of connection. Marble ceilinh finish will be attached to concrete beam or slab.
I want to inquire about this piling method and would appreciate any helpful info on screw piling. How do you design a screw pile, can it resist compressive force even in sandy or very loose gravel soil profile? I noticed on some websites that these piles are used for lighthouse, what type of...
We encountered a problem on sylinder tests when we switched testing laboratory. The 1st lab uses sulfur capping on samples; we get results way above the designed strength. The 2nd lab only uses rubber capping and we get results way below the designed strength. We suspect the rubber capping...
Is it ok not to have a mass concrete foundation for a transformer about 5 tons heavy. The contractor proposed to just place the transformer above 2 parallel I-beams embedded into the RC flooring of the elect room.
Is it possible that low intensity earthquake can cause only superficial cracks on plasters over concrete? If cracks on concrete appeared after an earthquake, I suppose the structural concrete has been affected thus cracks appeared on plaster. The crack maybe obvious only on the plaster but micro...
