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Why is tensile strength stronger than compressive strength?
Neither tensile strength nor compressive strength is inherently "stronger." Some materials are stronger in tension; other materials are stronger in compression. For example, rope is much stronger in tension than in compression, but concrete is much stronger in compression than in tension.
Why 7 days compressive strength is concider?
concrete strenght gain at first 7 days much increase so we consider 7days strenght
How much is the compressive strength of cement mortar cube in proportion 1 each to 3?
it should be around 3.0 N/mm2 in 2 days.
Why is the 28-days compressive strength of concrete generally specified?
It is attributed to two reasons: 1. Strength of concrete grows faster in initial days and this process of gaining strength slow down with time. This can be said as stabilization in value of gained strength of concrete. After approximately 20 or some more days, strength value get stabilize and does not change too much with time. Therefore, compressive strength is taken after approximatley 3 weeks time. 2. These tests have to performed practically and date record is needed to be maintained. Therefore, if test duration is a multiple of 7 (7 weekdays) then it is more easy to remind. It is the reason we have 28=7x4 days to note down compressive strength of concrete. for ex: if we start test on monday then we know that after 4 weeks on same time on monday we can finish the compressive strength test.
How much does a Bugatti Veyron weigh?
The kerb weight is 1888 kg
What is the kerb weight of a dyna wide glide?
how much does a honda cruiser weigh
How much does a 1998 vaux corsa weigh?
The kerb weight is 872 kg ( 1922 lbs )
How much does ring of stone cost in runescape?
A Ring Of Stone is - 2,565,000gp - 2,835,000gp, best not buy it and get a berserker ring for - 1,805,000gp - 1,995,000gp, it will have more use and it has strength bonus.
Why permissible compressive strength decreases with increase in grade of concrete?
it Gives Better estimation and assumption on how much it could carry. By logic, higher strength concrete is used on larger loads therefore, it is still not sure if the loads will be larger than the specified concrete strength. Therefore, having lower permissible strenth helps designers to have allowances for loadings to ensure safety
What is the modulus of rupture formula?
Per ASTM C78, the flexural strength of concrete (or the Modulus of Rupture) can be derived from the following equation:fc' = R2 / 100where:fc' = compressive strength (psi)R= Modulus of Rupture (psi)
What makes a bone strong?
first off the nature of shapes and structures (honey comb like) reduces weight without much of a decrease in strength. next hydroxylapatite is the major component of bone and gives it it's compressive strength. and finally there is another side the the strength of bone. collagen helps the bone not to break by giving it some flex. this may seem counter intuitive but a broken bone has no strength so collagen helps keep bones in working order.
How much does a Ford Fiesta weigh?
ford fiesta 1.4 exi weighs about 1110 as kerb weight and the gross weight is 1680
