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What are the materials use for water proofing in road construction?
Preet Chovatiya
The below material are generally used for waterproofing of road construction. 1. Bituminous polymer polymeric Albizol 2. Mastic bitumen rubber 3. Mastic bitumen-polymer 4. Bitumen-polymer hermetic 5. Mastic gluing (Vishera) 6. Mastic bitumen rubber 7. Mastic Hot Bituminous Rubber
The below material are generally used for waterproofing of road construction.
1. Bituminous polymer polymeric Albizol
2. Mastic bitumen rubber
3. Mastic bitumen-polymer
4. Bitumen-polymer hermetic
5. Mastic gluing (Vishera)
6. Mastic bitumen rubber
7. Mastic Hot Bituminous Rubber
See lessWhat is the purpose of soil sample soaked in water 7days in CBR Test?
Kuldeep Singh
The CBR test is done on a soil sample soaked or submerged in water to simulate the worst condition the subgrade material will be in after the construction of the pavement. First, we can't guarantee that the water won't penetrate thought the pavement down to the base and subgrade in the event of rainRead more
The CBR test is done on a soil sample soaked or submerged in water to simulate the worst condition the subgrade material will be in after the construction of the pavement.
First, we can’t guarantee that the water won’t penetrate thought the pavement down to the base and subgrade in the event of rains. Secondly, soil loses strength (especially shear strength) with increasing water content. So CBR value for a soaked sample is always less than that for the same dry sample. So, we design the pavement for a wet subgrade even though it may be dry at the time of construction. Otherwise, the soil will lose strength in the wet season, and the entire pavement will deteriorate with traffic load. So, we need to take the minimum CBR to design.
A step further, the soil for the CBR test is usually soaked for 96 hours (4 days), and if significant loss is detected, the engineers may further soak another sample for up to 5, 6, or 7 days as per their judgment to reach to their design CBR.
See lessExplain in detail about closer bricks?
Preet Chovatiya
When a brick is cut in a longitudinal direction and put it at the end of the course is called a Closer. Closer helps the joints of the successive source to align in a vertical line. The various types of closer are defined as below: 1. King Closer It is obtained by cutting the triangular piece from hRead more
When a brick is cut in a longitudinal direction and put it at the end of the course is called a Closer.
Closer helps the joints of the successive source to align in a vertical line. The various types of closer are defined as below:
1. King Closer
It is obtained by cutting the triangular piece from half of the longer side and half of the shorter side, as shown in the below figure.
2. Queen Closer:-
It is obtained by cutting the brick in a longitudinal direction and made two equal parts of brick, as shown in the below figure.
3. Bevelled Closer:-
It is a special type of a king closer in which the whole length is beveled in such a way that the shorter side half-width is maintained as it is, as shown in the below figure.
4. Mitred Closer:-
In this closer, the one end splayed for full width, and the angle of splayed is 45° to 60°, as shown in the below figure.
See lessExplain the Seasoning of Stone?
Vivek Patel
Newly cut stone has some moisture which called quarry sap. Due to moisture, stone durability decrease. So we need to Remove that moisture content and that process of removing moisture (quarry sap) from stone is called seasoning of stone. Basically 5-6 month need to the done seasoning process
Newly cut stone has some moisture which called quarry sap. Due to moisture, stone durability decrease.
So we need to Remove that moisture content and that process of removing moisture (quarry sap) from stone is called seasoning of stone.
Basically 5-6 month need to the done seasoning process
See lessWhy use a concealed beam in construction?
DevilAVRT
It is otherwise called "Concealed Beam". The Hidden beam is a way to depict the load scattering on to supporting slab. Hidden beams are for the most part embedded inside the suspended slabs where section thickness is extensive. In the event that the cantilever beam is with a Hidden beam, it can notRead more
It is otherwise called “Concealed Beam”.
The Hidden beam is a way to depict the load scattering on to supporting slab.
Hidden beams are for the most part embedded inside the suspended slabs where section thickness is extensive.
In the event that the cantilever beam is with a Hidden beam, it can not go about as an unadulterated beam and will just circulate the loads over the slab area and it can not be considered as basically bolstered one.
– as it were, “The hidden beam isn’t a beam and the main way to spread the focused loads of the walls on the piece region. The Hidden beam is a virtual beam that was started by somebody to utilize the Beam free headroom.
*Hidden beam is given among living and feasting spaces right angle to one another. This gives a perfect and level roof surface that is useful for the look.
Basically it makes a spanning issue, as spans for structural help are at a right angle to one another. This implies one slab structurally basically rests over the other.
Concealed beam between balcony and room is normal to encourage simple consideration of the gallery into room space later.
Purpose
To scatter loads on supporting slabs.
To break a wide board of slab to a significant size.
To accomplish max floor height.
To make room for electro mech ventilation work.
To improve architectural aesthetic appearance by giving flawless and leveled ceiling surface
Advantages
It saves floor height clearance.
It permits if brickwork to be built over a slab.
It is economical
It gives the better interior appearance
Disadvantages
The disservice of the concealed beam is that it’s extensively low malleability in view of the height reinforcement proportion that is given to repay to depth limitation explicitly at column connection.
Fundamentally it makes a traversing issue, as spans for structural support are in a correct right to one another. This implies one slab fundamentally rests over the other.
What is a hidden beam? Purpose, Applications and Design
See lessWhich type of building is best for G+1 story bungalow frame structure or load bearing?
DevilAVRT
For the G+1 structure, the load-bearing structure is consistently prudent. Notwithstanding, if it is a modern structure or the dirt conditions are terrible, at that point, confined structures are liked. Regardless of whether you settle on load-bearing sort structure, it is fitting to give RCC groupsRead more
For the G+1 structure, the load-bearing structure is consistently prudent. Notwithstanding, if it is a modern structure or the dirt conditions are terrible, at that point, confined structures are liked. Regardless of whether you settle on load-bearing sort structure, it is fitting to give RCC groups at plinth, ledge, and lintel levels to improve the seismic obstruction of the structure. In addition, On the off chance that the range of the section or pillar is progressive, at that point, to stay away from load fixation from bars on to the heap bearing dividers, it will be smarter to go for encircled structure. Likewise, the surrounded structure gives adaptability of receiving diverse floor plans for Ground and First floor.
See lessWhat is the CBR value for sub grade in road construction?
DevilAVRT
3% to 15% In India IRC: 37–2012 is used for design of flexible pavements. It gives design charts for pavement on the basis of CBR value for subgrade material ranging from 3% to 15%. However for subbase layer, MR (modulus of resilience) value is now considered.
3% to 15%
In India IRC: 37–2012 is used for design of flexible pavements. It gives design charts for pavement on the basis of CBR value for subgrade material ranging from 3% to 15%. However for subbase layer, MR (modulus of resilience) value is now considered.
See lessWhat is the difference between DCP test and CBR test?
DevilAVRT
Dynamic Cone Penetration testing DCP testing is utilized to decide the quality of the subsurface and configuration heap of the dirt. The designers play out the testing in-situ to give an estimation of the heap bearing limit which a clay can withstand, by estimating the degree of infiltration into thRead more
Dynamic Cone Penetration testing
DCP testing is utilized to decide the quality of the subsurface and configuration heap of the dirt. The designers play out the testing in-situ to give an estimation of the heap bearing limit which a clay can withstand, by estimating the degree of infiltration into the ground of an aligned tip or cone. Stiffer soils will yield a lower infiltration rate while gentler soils will bring about the expanded entrance.
When the most extreme structure heap of dirt is known, these outcomes can be utilized to figure-fitting footings and establishments for sub/superstructures to be put on or inside the dirt. All DCP tests are performed by ADE’s group of geotechnical designs and agree to AS1289.6.3.2 and AS1289.6.3.3.
Californian Bearing Ratio testing
CBR testing is led to decide the quality of a material (normally a subgrade) when it is at its greatest compaction. This reason for this is to decide the necessary thickness of a basic layer or asphaltic layer (for example, a pathway) to be put on the head of the tried material. This test guarantees that the quality necessities sketched out by the extent of works are fulfilled.
To play out this test, the greatest dry thickness is required to be embraced on the preceding material testing to decide the remolded thickness of the example. The example is normally remolded at 100% of standard compaction (or the relative compaction accomplished nearby) to decide the quality of the material. This test will require the time taken for a most extreme dry thickness to be embraced, and afterward, a multi-day drench to decide the reactivity of the dirt preceding testing.
This worth is given as a rate when contrasted with a normalized material (California Limestone) where a low worth relates to powerless fill and a high incentive to solid filling.
See less