I am carrying out an AASHTO timber dock design and want to make use of the load sharing factor (1.15). Please advise what the requirements are for making use of this factor. I am working in the UK and unable to obtain a copy of AASHTO at present. (i.e. I plan to space 6 no. stringers on 10...
What is the main difference between welded wire fabric gabions and double twisted hexagonal mesh gabions. Is the twisted hexagonal mesh stronger/more durable/more desireable? Why?
Have these been used for coastal protection where 6 foot waves or similar may occur during hurricanes? What are their major advantages/disadvantages over seawalls. Any examples/information greatly appreciated.
Have these been used for coastal protection where 6 foot waves or similar may occur during hurricanes? What are their major advantages/disadvantages over seawalls. Any examples/information greatly appreciated.
What guidance is available on the calculation of bending & shear moment calculation methods for a multi span reinforced concrete bridge? Thanks in advance.
What are the main problems associated with using an aggregate in a marine environment with a water absorbtion of 4.5% say? Usually less than 3% is required. Can the concrete design be changed to accomodate for this poor quality in the aggregate? Thanks in advance.
I am casting 2'6" * 2'6" * 5'0" concrete blocks for use in seawall construction. Small bubbles are seen on the surface of the cast blocks (especially on sloping faces). I am considering the use of plasticiser to improve the quality of the blocks. What type and quantity of...
I am trying to find a pre-packaged repair concrete to be used on the face of corroded steel concrete piles where the concrete coping has fallen away. Where might I find such a concrete or what other alternatives are there? Thanks for your advice in advance.
I am considering a concrete mix design for placing over corroded steel sheet piles in a dock location (splash zone). It has been suggested that a corrosion inhibitor should be added. How effective are these?
I am considering a concrete mix design for placing over corroded steel sheet piles at a dock location. It has been suggested that a corrosion inhibitor should be added. How effective are these?
I am considering a concrete mix design for placing over corroded steel sheet piles. It has been suggested that a corrosion inhibitor should be added. How effective are these?
I am designing docks for the first time. What are the best references for me to use? In particular for small timber pile docks with blow away panels. What is a good aid for structural design of group piles?
I am designing docks for the first time. What are the best references for me to use? In particular for small timber pile docks with blow away panels. What is a good aid for structural design of group piles?
There are 20,000 bags of 940lb bagged cement (9400 ST) which have gotten wet. I am considering their use for a buried revetment base layer. Neat cement is highly alkaline and might have detrimental effects on the marine life, even if buried. How soluble is neat hard cement and could it in time...
There are 20,000 bags of 940lb bagged cement (9400 ST) which have gotten wet. I am considering their use for a buried revetment base layer. Neat cement is highly alkaline and might have detrimental effects on the marine life, even if buried. Neat hard cement does not have a high compressive...
It is considered appropriate to design timber docks with blow away panel decks. How do you design for blowing away at the right time (hurricane). I am considering a 5 foot by 10 foot panel made up of 3" by 8" members nailed at the four corners with 3.5/4" nails.
I know that turbidity barriers/silt curtains are not appropriate for locations where water velocities are 0.5m/s and conditions are not calm. Is there any proof of their effectiveness? I understand that even when these conditions prevail they are of limited use. What are the alternatives when...
