7.8 Design the concrete mix according to the following conditions: Design Environment Building frame Required design strength Minimum dimension = 27.6 MPa = 150 mm Minimum space between rebar Minimum cover over rebar = 40 mm = 40 mm Statistical data indicate a standard deviation of compressive strength of 2.1 MPa is expected (more than 30 samples). Only air entrainer is allowed. Available Materials Air entrainer: Manufacture specification 6.3 ml/1% air/100 kg cement.

Q: What could be the primary reason for getting the slump value less than predicted ? O High water…

A: Low Slump Value:  In the slump test, the primary reason for getting a low slump value is Low…

Q: design a concrete mix to make 9 m3 of fresh concrete the concrete is located near the sea select the…

A:

Q: What is the minimum strength that concrete must reach prior to freezing so that the overall strength…

A: The minimum strength that concrete mus overall strength gain is not affected:

Q: Design the concrete mix according to the following conditions: Design Environment • Concrete slab o…

A: 1) Concrete slab : Subjected to freeze and thaw, Required design strength (fs') = 21 MPa ,Slab…

Q: A trial concrete mix is to be prepared for a garage floor which is subjected to freezing. and…

A:

Q: The name of the test used to measure the consistency and workability of fresh concrete is called the…

A: The name of the test used to measure the consistency and workability of fresh concrete is called the…

Q: The maximum applied load on cylindrical diameter 150 mm and length 300 mm a concrete specimen of…

A: Given: The diameter is 150 mm. The length is 300 mm. The applied load is 157 kN.

Q: ve desic Q4) Concrete is required for walls of a building that will be moderately exposed to…

A:

Q: Design concrete mix to satisfy the requirements for concrete foundation subjected to ground water…

A:

Q: Design the concrete mix according to the following conditions: het Design Environment Pavement slab,…

A: Given, Design strength (f'c) = 5000 psi  Admixture dose = 0.15 fl oz/1% air/100 lb

Q: To evaluate the effect of a certain admixture on the flexure strength of concrete, two mixes were…

A: a) The formula of modulus of rupture of the beam is given by,

Q: On the 28th day after concrete was mixed, a 6.00-in-diameter concrete cylinder failed in a…

A: Given data,Diameter of cylinder d = 6 inCompressive load P = 145000 lbFactor of safety  = 5

Q: Assume that you are going to make a three cubic yard (3yd³) of concrete. Create your own mix design…

A: The design strength = 3.8 ksiThe slump should = 3 to 4 in.The maximum size of aggregate = 2 inUnit…

Pavement Management

Pavement management is the process of planning the maintenance and repair of a roadway network or other paved infrastructure to improve road conditions throughout the network. It is also used on runways and airports. Every highway superintendent undertakes walkway management. Traffic management includes the cost of living cycles in a systematic way of repairing minor and major roads and reconstruction projects. The needs of the entire network and budget estimates are considered before the projects are undertaken, as the cost of data collection can change significantly. Pavement management incorporates many of the features and functions required to maintain the quality of the paved material as well as to ensure that the entire road network can sustain itself at the required levels. Although pedestrian management involves the life cycle of commuting from planning to maintenance of any transport infrastructure, road asset management, and road maintenance planning is primarily aimed at road infrastructure.