Production costs are higher if you have a ton of different materials and sizes because you're paying for each and every one of those things to be produced separately where as if you get a lot of the same, the costs will be lower due to mass production.
Concrete setting is initiated by a process called hydration. Rather than the concrete just 'drying out', the hydration process involves the water added to the materials (stone, sand & cement) reacting with the cement. The water reacts with calcium in the cement to form an alkali paste which bonds the materials together. Adding too little water means not enough cement hydrates to set properly, but too much will cause separation of the materials.
a nominal mix is that mix in which we adopt the various ingredients such as1:2:3,1:2.5:4etc here the strength will not be the desired strength and generally here we take the ingredients per unit vol a design mix is that mix in we find the ratio of the different ingredients as per the desired strength and the ingredients would be in per unit weight
shear is not critical in designing normal columns (3-5 meter height). but in short columns (Pedestals) around 1meter height or less, shear would be more critical rather than moment or axial force. this also happens for beams less than two meter length in moment resistant frames.
If a building is not properly maintained then it will fall down sooner rather than later
compression: the keystone in particular is under rather high compression forces.
Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.Yes, they were rather expensive as they were considered a delicacy.
It can get rather expensive, depending on the layout of the oven. Studies have shown that there is an incredibly dramatic price range in built-in ovens, so you may need to prepare to make an expensive purchase.
It's artistic rather than scientific or engineering, but you still have to understand the materials and their uses and working methods.
There are 100 different elements, but most come in the form of individual atoms rather than molecules..
overall it depends on the condition, design and materials used. If it was HAND MADE (vs machine made(, if it is made of wool rather than acrylic, if it is in good condition rather than worn, if the design is complicated or simple. In general, I would if it were hand crocheted, of 100% virgin wool or better (cashmere!), a pleasing design and in good condition, sure!
Made from different materials. Bakelite is hard and rather brittle, polythene is softer and flexible.
Copper gutters have the advantage of not rusting, although they are more expensive to install. Annual maintenance must be performed to prevent the copper from tarnishing.
It would be better to launch a t-shirt design website rather than pay for a store front as the overheads can get very expensive. One can promote the design websites on blogs and pay to advertise the tshirts on popular sites.
Excellent, but rather expensive.
No, it is rather expensive to pump the fluids and detritus at those high pressures. And appropriate fluids are not cheap materials either. It just needs to be cheaper than the alternative methods of recovering the oil/gas from the underground formations.
steel if you are asking, ____ materials, then its SYNTHETIC
A great resource for that are Mitchell repair manuals. They're rather expensive, but your local library should have them, although most won't let you check them out. Since they are reference materials, libraries will let you use their copier.