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G R Infraprojects
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Flexible pavement and rigid pavement are two types of pavements used in different types of road projects.
Flexible pavement is made of multiple layers of materials that can flex under traffic loads.
Rigid pavement is made of a single layer of concrete or asphalt that is rigid and does not flex.
New projects involve constructing roads from scratch, while realignment projects involve changing the alignment of existing roads...
The question describes the application of prime coat and tack coat on a WMM surface.
Prime coat is a low viscous cut back bitumen used to fill up pores and voids on a WMM surface.
Tack coat is a light application of bitumen, asphalt, emulsion, or dilute water applied on the prime coat.
The purpose of the prime coat is to bond the WMM surface with the subsequent layers of asphalt.
The tack coat helps in providing a strong b...
Design procedure for 150mm DLC thickness using M15 grade concrete with specific requirements for cement content, testing, mixing, transportation, compaction, and curing.
Use M15 grade concrete with maximum aggregate cement ratio of 12:1
Minimum cement content of 150kg per cum, or 120kg per cum if flyash is more than 20%
Perform 5 sample cube test after 7 day curing with strength of 10 MPA, and 1 sample cube test after 7 d...
Design procedure for Senior Project Manager role including cement content, strength, joint design, and surface finishing.
Minimum cement content of 360 kg per cum, or 310 kg per cum if fly ash is more than 20%
Flexure strength of cement concrete after 28 days curing is 4.5 MPA
Compressive strength of cement concrete after 28 days curing is 40 MPA
Dowel bar provided for expansion joint vehicle load transfer between slabs
Tie...
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posted on 12 Sep 2022
The question is about the specifications of different layers in a flexible pavement.
The embankment layer has a thickness of 3m and is compacted at 95% with large size soil particles and effective CBR as per design.
The subgrade layer has a total thickness of 500mm and is compacted at 97% with large size soil particles and effective CBR as per design.
The GSB layer has a total thickness of 300mm and is a mixture of aggreg...
Design procedure for laying M15 grade concrete with specific requirements for cement content, compressive strength, and compaction.
Use M15 grade concrete with aggregate and cement ratio of 1:2
Minimum cement content of 150kg per cum, or 120kg per cum if flyash is more than 20%
Ensure compressive strength of 10MPA after 7 days curing, with no sample below 7.5MPA
Ensure DLC premix batching plant material is homogeneous and ...
Design procedure for PQC using M40 grade concrete
Minimum cement content of 360kg per cum
Flexural strength of 4.5MPA and compressive strength of 40MPA after 28-day curing
Dowel bars and tie bars provided for load transfer and prevention of cracking and deflection
PQC mix prepared in pre-mix batching plant and transported to site
Separation membrane and texturing and sawing operations performed for proper finishing
28-day cu...
Different types of carriage way include single lane, multilane, intermediate lane, two lane, three lane, and four lane.
Single lane has a width of 3.75m
Multilane has a width of 3.50m
Intermediate lane has a width of 5.5m
Two lane has a width of 7.5m
Three lane has a width of 10.50m
Four lane has a width of 7.5m + 7.5m
posted on 27 Aug 2021
I applied via Referral and was interviewed in Mar 2021. There were 3 interview rounds.
Cost control in construction activities through effective management of major items
Develop a detailed cost estimate for the project
Monitor and track actual costs against the estimate
Identify major cost drivers and implement cost-saving measures
Regularly review and update the project budget
Ensure effective communication and collaboration between all stakeholders
Use technology and software to streamline cost control proc...
posted on 13 Feb 2023
I applied via Company Website and was interviewed before Feb 2022. There were 2 interview rounds.
Lap is used in the center of a column or Zone B for structural stability and reinforcement.
Lap joints provide additional strength and stability to the column.
They help in distributing the load evenly across the column.
Lap joints prevent the column from cracking or failing under heavy loads.
Zone B is a critical area where the maximum bending moment occurs, and lap joints help in reinforcing this zone.
By using lap in the...
Construction joints are provided at mid-span of simply supported slabs.
Construction joints are provided to allow for differential movement between adjacent sections of the slab.
They are typically located at mid-span of the slab, where the bending moment is zero.
The joint should be designed to transfer shear and moment between the two sections of the slab.
Proper reinforcement detailing is necessary to ensure the joint f...
L/6 or L/3 is the ratio used to determine the maximum allowable deflection of a slab.
L/6 is used for residential buildings while L/3 is used for commercial buildings.
The ratio determines the maximum amount of deflection that a slab can have without causing damage or discomfort to occupants.
For example, if the span of a slab is 12 feet, the maximum allowable deflection for a residential building would be 2 inches (12/6)...
posted on 1 Mar 2023
posted on 14 Sep 2023
I applied via Recruitment Consulltant
Project Management , Production Management and HSE
Deeply interested in RR PACKAGE
Well. We used to do everyday
posted on 10 Sep 2015
I applied via PLACEMENT
posted on 10 Sep 2017
I was interviewed before Sep 2016.
posted on 12 Oct 2020
I applied via Naukri.com and was interviewed before Oct 2019. There were 3 interview rounds.
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