Reinforced concrete has reinforcing bars (called rebar) simply embedded in the pour. With prestressed concrete, reinforcing rods or cables are stretched (stressed) and then the concrete is poured around them. After the concrete hardens, the tension on the reinforcing members compresses the concrete, making it more resistant to failure where poor soil conditions or severe loads exist.
Prestressed construction is usually done in-plant because of the equipment involved, and the completed assembly shipped to the site for installation.
A similar method, called post-tension, is usually done on site, and involves the tensioning of reinforcing cables after the slab is poured, using a special hydraulic jack.
tawad Board
Mass concrete is concrete cast without Rebars. They are good in compression and are mostly used for the construction of gravity structures such as Dams. While reinforced concrete have reinforcement bars in them, which increases the tensile strenght of the concrete.
Mass concrete is concrete cast without Rebars. They are good in compression and are mostly used for the construction of gravity structures such as Dams. While reinforced concrete have reinforcement bars in them, which increases the tensile strenght of the concrete.
Blind Concrete
hbhuby
tawad Board
Mass concrete is concrete cast without Rebars. They are good in compression and are mostly used for the construction of gravity structures such as Dams. While reinforced concrete have reinforcement bars in them, which increases the tensile strenght of the concrete.
Mass concrete is concrete cast without Rebars. They are good in compression and are mostly used for the construction of gravity structures such as Dams. While reinforced concrete have reinforcement bars in them, which increases the tensile strenght of the concrete.
It was sculpted by Paul Landowski of reinforced concrete and soapstone between 1926 and 1931.
Blind Concrete
It was sculpted by Paul Landowski of reinforced concrete and soapstone between 1926 and 1931.
Jun Yamazaki has written: 'Shear and moment transfer between reinforced concrete flat plates and columns' -- subject(s): Concrete Columns, Reinforced concrete, Testing 'A comparison of the behavior of post-tensioned prestressed concrete beams with and without bond' -- subject(s): Prestressed concrete beams, Testing
Glass fibres do not rust like steel reinforment can and they meld togeter like fiber glass dose, they (if mixed properly, for at least 10 mins beforehand) are more consistent throughout the mix too. Allow one bag of XT fibres (cost about £6 each) per cubic meter of concrete. Regards Colin
PCC is plain cement concrete. It consists of cement, sand, aggregates and water. It is good at resisting compression. RCC is reinforced cement concrete. It consists of cement, steel, aggregate and water. It is good at resisting tensile stresses also.
hbhuby
500psi
Duff Andrew Abrams has written: 'Quantities of materials for concrete' -- subject(s): Concrete, Tables 'Effect of curing condition on the wear and strength of concrete' -- subject(s): Concrete 'Tests of bond between concrete and steel' -- subject(s): Reinforced concrete 'Effect of vibration jigging and pressure on fresh concrete' -- subject(s): Concrete 'Test of a 40-foot reinforced concrete highway bridge' -- subject(s): Bridges