Joel Hawkins

276

Quarry engineer

Pouring concrete in columns needs great caution to ensure the achievement of designated strength and durability.

Place the concrete in layers and compact each layer properly to obtain a consolidated contract mass that in circles Steel bars and has low... (More)

Hi,
To be more precise, the purpose of helmet color codes is to serve two main objectives:
1. Identification of person and his responsibilities
2. Safety against accidents and falling objects

There is a set of standard helmet colors as... (More)

Hi, the rotating tower is designed by an architect David fisher in 2006. It is an 80 storey building which is 420 metres above the ground which can be able to rotate 360 degrees.

The concept behind the rotating tower,... (More)

IS 3085 : 1965 - Method of Test for Permeability of Cement Mortar and Concrete

Stucco is applied by an industry specialist to the interior and exterior walls. An expert can apply the plaster manually or by using a machine. This portland cement plaster can be used on concrete wall systems, or on a frame... (More)

As far as external walls are considered there is maximum need to protect it from harsh weather conditions, algae formations, fungi formations etc.

The following ingredients are must to protect it from all types of atmospheric attacks:

• Pure acrylic paints.... (More)

Some of the ground investigation which are done before building construction are :-
– Desk study/preliminary risk assessments
– Trial pitting and trenching
– Window sampling and dynamic probe testing
– Insitu testing
– Cable percussive boreholes

Following are the reasons behind the vibrators are not used during concreting in piling works:

Vibrators are used:

• For removing air voids
• Avoiding the formation of the honeycomb structure
• For proper compaction

In the case of pile construction work, the... (More)

The average density of soil is 2.65 grams per cubic centimeter = 2.65 g/cu.cm22

Main Reinforcement always provide to resist tension in the member.

The concept of +ve and -ve reinforcement is come when we talk about beam or beam like other structure.

In beam, part where moment is sagging(generally, at near mid point)reinforcement... (More)

1. Plinth levels of all buildings should be 0.6 m above the drainage/flood submersion levels under the mean annual flood.
2. All the buildings should preferably be two or more storeys.
3. In single-storey buildings, a stairway must be provided to the roofs... (More)

Patches are the worst enemy of bituminous road and irritate the road users.

Following are some modern methods for patch repairing:

1. Throw and rolling repair: this is the most common method used for repairing patches and potholes. Place an asphalt... (More)

Soil stabilization of highway embankment

Soil Stabilization
• Mechanical stabilization: Improvement of soil properties can be achieved by changing particle gradation. The engineering performance depends
mainly on grain size distribution and plasticity.
Significant changes in the properties can be made... (More)

Under reamed piles are best suited for black cotton soil.

The effect of coarse aggregate size in compressive strength of concrete are as follows :-

(1) Coarse aggregate size is directly proportional to the slump (workability) of a fresh concrete with constant water cement ratio.

(2) Compressive strength of a... (More)

Vena contracta is the point in a fluid stream where the diameter of the stream is the least and fluid velocity is at its maximum, such as in the case of the stream issuing out of a nozzle. It is... (More)

A “lap� or splice is designed to transfer the force from.one bar to the next in line. It stands to reason that the maximum force that needs to be transferred is limited by the smaller bar. Hence the lap is... (More)

With reference to Bureau of Indian Standards, the term SP refers to Special Publication.

• The triaxial shear test is widely used for determining the shear strength test and it is suitable for all types of soil.
• A cylindrical specimen of L/D = 2 used for the test where stresses are applied under the condition... (More)

Reinforced concrete is the kind of concrete you’ll normally see. It’s reinforced with steel rebars to compensate for the low tensile strength of plain concrete.

Fiber reinforced concrete is one in which the steel rebars are replaced with fibrous material... (More)