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Sunday, December 8, 2024

Abbreviations Used in Construction Industry - Part 4 (M to P)

Dear Readers, 

This continues from Part-3. For both seasoned professionals and newcomers, grasping construction management acronyms, construction estimating abbreviations, and construction project management acronyms is crucial for industry success.

Understanding a list of construction abbreviations is crucial. Recognizing these abbreviations is the initial step in learning to read construction blueprints.

221) M-Book – Measurement Book. It is used for work certification of executed quantity.

222) Mat’l – Material used for Construction.

223) Material Management (MM) – The Process of Managing and Coordinating the Delivery of Materials to a Construction Site.

224) M/c – Machine. Hand tool machines used for grinding, drilling, cutting operations.

225) MD – Man-Days is the cumulative product of no. of persons involved in work & no. of days they worked each. Generally, in construction involving labour, man days is very important feature to estimate amount work force needed and to quantify that.

226) MDL – Master Document / Drawing List. It is targeted at the following User Project Roles: Document Controllers (DC) with Owner's PM Team, Consultants, Contractors, and Specialist Contractors. Design Managers and their key review team members who will oversight design and shop drawings review & approval.

227) Mediation – A Form of Alternative Dispute Resolution Where a Neutral Third Party Facilitates Negotiations Between Disputing Parties.

228) MEP (Mechanical, Electrical, And Plumbing) – The Systems and Components of a Building That Provide Heating, Cooling, Electrical Power, and Plumbing.

229) MIG – Metal Inert Gas (MIG) welding is an arc welding process that uses a continuous solid wire electrode heated and fed into the weld pool from a welding gun.

230) MIS – Management Information System. It is a planned system of the collecting, processing, storing and disseminating data in the form of information needed to carry out the functions of management. The term usually refers to business operations not engineering.

231) MM – Man Month. It is similar to Man Day but calculated per month.

232) MOH – Materials on Hand. This refers to materials that have been purchased specifically for a project. In construction, this typically refers to materials that have been procured, but not yet installed. Physical Stock.

233) MoU – Memorandum of Understanding. It is a nonbinding agreement that states each party's intentions to take action, conduct a business transaction, or form a new partnership. This type of agreement may also be referred to as a letter of intent (LOI) or memorandum of agreement (MOA).

234) MP – Monthly Plan. It shows the monthly target and in line with the project schedule.

235) MPCS – Management Planning and Control System.

236) MPR – Monthly Progress Report.

237) MPT – Magnetic Particle Test.

238) MRC – Material Receipt Certificate.

239) MRM – Monthly Review Meeting.

240) MSDS (Material Safety Data Sheet) – A Document That Provides Information About the Hazards of a Chemical Substance.

241) MQP – Manufacturing Quality Plan. It is a basic test requirement during manufacturing process.

242) MTC / MTR  Material Test Certificate / Material Test Report.

243) MTO – Material Take-Off.

244) N/A – Not Applicable.

245) NCR – Non-Conformance Report / Non-Conformity Report.

246) NDA – Non-Disclosure Agreement.

247) NDCT – Natural Draft Cooling Tower.

248) NDT – Non-Destructive Test.

249) Negotiation – The Process of Discussing and Reaching a Mutually Agreed-Upon Resolution in a Construction Project.

250) NOC – No Objection Certificate.

251) N/S or F/S – Near Side or Far Side. It is used in structural fabrication drawing.

252) NTP – Notice to Proceed – This is a formal letter from an owner or director to a contractor or consultant to start work. It is usually the official start of contract time.

253) NTS – Not to Scale. “Not to scale" means the drawing is larger or smaller than real.

254) O2 – Oxygen gas.

255) O.C. – On Center – In dimensional callouts, on-center indicates the spacing between the center of an item or component and adjacent items or components, such as reinforcing steel, columns, footings, rails, etc. It’s the same as C.C. or “center-to-center.” It is distinct from “clear spacing.”

256) OH – Over Head. 

257) O&M – Operations & Maintenance.

258) OEM – Original Equipment Manufacturer. 

259) OPC – Ordinary Portland Cement.

260) OPEX – Operational Expenditure.

261) OSBL – Outside Battery Limit. It is the barricading of work limits.

262) OSHA (Occupational Safety and Health Administration) – A Federal Agency Responsible for Establishing and Enforcing Safety Standards in the Workplace.

263) OSL – Overhead Slab Level.

264) PAC – Plasma Arc Cutting. An arc cutting process using a constricted arc to remove the molten metal.

265) Paving – The Process of Laying Down a Surface for a Road, Parking Lot, Or Other Surface Area.

266) PAW – Plasma Arc Welding. An arc welding process that uses a constricted arc between a non-consumable electrode and the weld pool

267) PBG – Performance Bank Guarantee.

268) PCC – Portland Cement Concrete.

269) PD – Project Director, who holds end to end responsibility of that project.

270) P&ID – Piping and Instrumentation Diagram.

271) Plumbing Services – The Provision of Plumbing Services for A Construction Project.

272) P&M – Plant & Machinery. (Construction Equipment's)

273) PM – Project Manager, who manage the execution of Project.

274) PMG (Project Management Group) – The Planning, Execution, And Closing of Construction Projects Within Budget, Timeline, And Scope.

275) PMP (Project Management Professional) – A professional designation for project managers.

276) PO – Purchase Order. It is (PO) a legally binding document that confirms a business's intent to buy goods or services from a supplier.

277) P&OD – Personal and Organization Development. 

278) PPC – Portland Pozzolana Cement. PPC is a type of blended cement comprising Portland clinker, pozzolana particles and gypsum in certain specific proportions.

279) PPE (Personal Protective Equipment) – Equipment Worn to Minimize Exposure to a Variety of Hazards.

280) PQP – Project Quality Plan. sometimes referred to as a quality management plan, quality assurance plan or project quality management plan, is a project-specific quality plan that describes the activities, standards, tools and processes necessary to achieve quality in the delivery of a project

281) PR – Purchase Request. A purchase requisition is an internal document used by a department or individual within an organization to request the acquisition of goods or services. It is essentially a formal request.

282) Pre-Construction Services – Services Provided Before the Actual Construction Process Begins, Such as Design and Planning.

283) Procurement – The Process of Acquiring Materials, Equipment, And Services for a Construction Project.

284) Project Scope – The Defined Boundaries of a Construction Project, Including What is and is not Included in The Work to be Performed.

285) Project Stakeholder – An Individual or Organization that has an Interest in the Outcome of a Construction Project.

286) PRV – Pressure Relief Valve or Pressure Reducing Valve. A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system.

287) PTW – Permit to Work. A PTW system is a formal written system used to control and execute certain types of jobs safely, which are identified as potentially hazardous.

288) PVC – Price Variance (Price Escalation). The Contractor shall be reimbursed or shall refund to the Corporation as the case may be the variation in the value of the work carried out from time to time, depending on whether the prices of material and labour as a whole rise or fall.

289) PWD – Public Work Department. PWD is an Indian government agency responsible for building and maintaining public services, such as public government construction, highways, bridges, public transportation, drinking water sources, etc.

290) PWHT – Post Weld Heat Treatment. It reduces the levels of tensile residual stresses in a joint.

Sunday, November 10, 2024

FRP Laminate structure for pipe and fittings

Two standard manufacturing methods are used in FRP laminate construction as an overwrap for thermoplastic piping systems: Filament Winding and Contact Molding (hand lay-up).

Pipes and fittings of Type D, as per DIN 16965 / 966 standards, consist of a Chemical Barrier Layer (CBL) with a minimum thickness of 2.5 mm and a structural layer filament-wound from woven roving, Chopped Strand glass mats, and unidirectional woven roving. Additionally, there is a bonding layer that connects the thermoplastic liner to the FRP structure. The top layer serves as exterior protection and includes a resin layer with paraffin wax and UV protection.

Below figure shows CBL, Structural layer, top layer.


For Chemical barrier layer (CBL):  Chemical barrier layer consists of Resin-rich layer with a gelcoat veil and chopped strand mats. It is having resin content 75 ± 5% and Glass content 25 ± 5%.

Structure layer: This layer is the primary structural portion of the laminate and is designed to withstand the loads caused by pressure, wind, seismic and other conditions. It consists of alternating layers of chopped strand.

Structured layer for pipes: Filament winded from roving, Chopped strand mats and woven roving. It will have resin content 40 ± 5% and Glass content 60 ± 5%.

Structured layer for fittings: Laminated from Chopped Strand mats and woven roving. It is having resin content 45 - 65% and Glass content 35 - 55%.

Top layer / Outer Surface Layer: The top veil is used for protection against all weather conditions, UV radiation, and chemical reactions. If the outer surface of a laminate is to be exposed to a corrosive environment, a veil layer or a chopped strand layer may be added over the structural layer for additional protection. The outer surface can also be pigmented for color designation if necessary.

For More Details about FRP click Here

For More Details about FRP Pipe click Here

Sunday, October 20, 2024

Terminal Benefits of Construction Labour

Dear Readers,

Even though, the construction industry is the second largest employer in India, after agriculture. The casual nature of jobs in the unorganized construction sector can lead to poor working conditions, low salaries, and less job security. Construction projects are often located in remote sites, can be unpredictable, and there is a high chance of encountering unforeseen problems like weather. 

Terminal benefits are final entitlements of an employee upon termination of an employment contract. It is nothing but Money paid to an employee whose employment has been terminated because of a closedown or downsizing. 

Below Table shows the industrial practice of Terminal benefits for construction Workmen. A contingency has been included, which will be tailored to your requirements.

Please note that, if you leave the company on your own accord before the expiry of the notice period, you will not be eligible for retrenchment compensation as per the retrenchment notice already issued.

For costing, estimating, or rate analysis purposes, terminal benefit calculations are crucial to avoid significant crises. Calculating necessary cost provisions periodically and maintaining them can prevent financial crises and last-minute surprises.

For More Details about Basic Wages Click ABW

For More Details about Man Day & Man Hour Click Here

For More Details about Labour Welfare Click Here

For More Detail about Labour Law in India Click Here

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