background preloader

Quantity Surveying

Facebook Twitter

Bid bond, bid bond construction, bid bond vs performance bond, calculation of concrete, quantity calculation of concrete, taking off in construction, taking off quantities, taking off sheet, construction risk management, risk management, risk management definition, risk management for construction, quantity calculation, quantity surveying practice, insurance, construction insurance companies, construction, blog, blogger, , quantity surveying

What is Scaffolding? Scaffolding Definition - Trade Union | Construction Document | Direct Cost | Indirect Cost. Today, I am going to share with you what is scaffolding, scaffolding definition and types of scaffolding in construction. Content of Article... What is scaffolding? Scaffolding definition What are the component of scaffolding? Types of scaffolding Single scaffolding Double scaffolding Cantilever scaffolding Suspended scaffolding Trestle scaffolding Steel scaffolding Patented scaffolding Scaffolding can be a temporary structure to support construct building/ structure also workmen used it as a platform to hold on the development works. Normally, type of scaffolding can be varied with the type of construction work.

What is scaffolding? In construction industry, there are lot of definition for term of scaffolding. Scaffolding can be a temporary structure build by rigger/ labour to support difference kind of construction work in ongoing construction project. Mostly, scaffolding is formed by stainless steel, wood, aluminum, bamboo, etc. What are the component of scaffolding? Types of Scaffolding 1. 20 Types of Building Materials in Construction - Trade Union | Construction Document | Direct Cost | Indirect Cost. Today, though, the practice is undergoing a revival. within the Netherlands, for instance, many of latest builds too have thatched roofs with special ridge tiles on top. 6. Brush Brush structures are built entirely from plant parts and are generally found in tropical and subtropical areas, likerainforests, where very large leaves are often utilized in the building. Native Americans often built brush structures for resting and living in, too. These are built mostly with branches, twigs and leaves, and bark, almost like a beaver’s lodge. 7.

Ice was employed by the Inuit for igloos, but has also been used for ice hotels as a tourist attraction in northern areas which may not otherwise see many winter tourists. 8. Wood are often very flexible under loads, keeping strength while bending, and is incredibly strong when compressed vertically. Historically, wood for building large structures was utilized in its unprocessed form as logs. 9. 10. 11. There are many sorts of metals used for building. Components of Staircase and their Details - Trade Union | Construction Document | Direct Cost | Indirect Cost. There are various components of staircase which have their own functions. Today, I ma going to discuss those each components of a staircase and their details in this article.

Following are the varied components of staircase, Step The step consists of the tread and riser. Tread The a part of the stairway that's stepped on. it's constructed to an equivalent specifications (thickness) as the other flooring. Riser The vertical portion between each step on the stair. this might be missing for an “open” stair effect. Nosing An edge a part of the tread that protrudes over the riser beneath.

Starting step or Bullnose Where stairs are open on one or each side , the primary step above the lower floor could also be wider than the opposite steps and rounded. Besides the cosmetic appeal, starting steps allow the balusters to make a wider, more stable base for the top of the handrail. Handrails that simply end at a post at the foot of the steps are often less sturdy, even with a thick post. Winders Trim Volute. 5 Type of Measuring Tape Used in Surveying - Trade Union | Construction Document | Direct Cost | Indirect Cost. Measuring tapes are used in surveying to take linear measurements. They are available in marketplaces with different lengths and can be made of different materials.

Today, 5 most common 5 type of measuring tape used in surveying are discussed in this article. There are 5 types of tapes available in surveying for linear measurements and they are as follows, Read more; Who is Quantity Surveyor? 1. Linen Tape Linen tape, also known as cloth tape is a varnished strip made of closely woven linen. Linen tapes are light in weight and straightforward to handle. 2. The metallic woven tape is an improved version of linen tape. These tapes are available in different lengths of 2m, 10m, 15m, 20m, 30m, and 50m. 3. A steel tape is formed of steel or chrome steel . Steel tapes aren't flexible and are suitable for measuring leveled surfaces only. they'll corrode easily when exposed to moisture and to stop this tape, it should be cleaned and oiled after every use. 4. 5.

Read more; Who is Quantity Surveyor? Use of Concrete | Compaction of Concrete | Mixing of Concrete - Trade Union | Construction Document | Direct Cost | Indirect Cost. Concrete holds a high place in today's construction industry due to its many strengths and durability. Here we discuss about concrete, uses of concrete, properties of concrete, compaction of concrete, curing of concrete, mixing of concrete, proportioning of concrete, etc. The construction industry underwent a major transformation when it was discovered that concrete could be used for any shape at any place, free from the confines of stone and iron. Concrete is a must for building materials, as well as for architectural standards, which can be created by mixing bonding materials, fine aggregates and coarse aggregates with water at a proper rate. When used alone, concrete is called Plain Concrete. Also, when steel bars are systematically reinforced into concrete, it is reinforced cement concrete (R.C.C).

Content...Properties of ConcreteCompaction of ConcreteCuring of ConcreteMixing of ConcreteProportioning of Concrete What are the Grades in Concrete? In simply, Grades is the ratio of concrete. Purpose of Temporary Benchmark in Surveying | Benchmark Surveying - Trade Union | Construction Document | Direct Cost | Indirect Cost. A temporary benchmark (TBM)/ Benchmark Surveying is a fixed point with a known elevation used for level control during surveys works and construction like excavation level, Back filling, screed top level, etc. Benchmark Surveying Nails in road seals, or marks on kerb & channel are commonly used as temporary benchmarks. Someone referred to as 'TBM' or 'SFL'. 'SFL' can be equal to plinth beam or DPC top level. Temporary Benchmark (TBM) The term benchmark, or bench mark, originates from the chiseled horizontal marks that surveyors made in stone structures, into which an angle-iron might be placed to make a "bench" for a leveling rod, thus ensuring that a leveling rod might be accurately repositioned within the same place within the future.

These marks were usually indicated with a chiseled arrow below the horizontal line. The term is usually applied to any item wont to mark some extent as an elevation reference. Type of Benchmark Surveying? Permanent Survey Mark (PSM) Precast Concrete Construction Technology - Trade Union | Construction Document | Direct Cost | Indirect Cost.

As the name suggest, precast concrete is prepared by casting and curing the concrete in a mold under specific circumstances. The concrete is totally manufactured in a factory by adopting special construction techniques. When the concrete is fully hardened and prepared, it is sent to the final construction site. Precast concrete construction has become very popular in some countries like the USA, SriLanka, UK etc. Precast Concrete Precast Concrete There are many different types of precast concrete forming systems for architectural applications, differing in size, function, and cost. Following are the precast concrete Members. Railway Sleepers Bridge Beam Paving Slab Beam (tie beam, main beam) Road and Bridge Components Column Footing PC Pipes PC Piles SBS slab (include 't' beam, soffit block) Pergolas Stairs, etc...

The advantages and disadvantages of precast concrete Advantages of precast concrete 1. 2. 3. 4. 5. 6. 7. 8. 9. Disadvantages of precast concrete 1. 2. 3. 4. Precast Concrete 1. 2. What are kickers and Why?... we used kickers - Trade Union | Construction Document | Direct Cost | Indirect Cost. In this article we will discuss about concrete kicker, kicker construction, wall kicker, column kicker, etc.In the construction terminology that i Use, a kicker is a 50-150mm step that is provided at the Column/ Shear wall Base during the casting of the slab/ foundation. It is provided to ensure that the coordinates of the column/ wall are maintained uniformly between the slab and essentially throughout the structure. somewhat like this... Following the slab/ foundation casting, the shuttering for the column can be fixed directly on the kicker to ensure column location and base alignment is accurate. Its purpose is to avoid uneven steel cover and Column/wall alignment issues which are almost impossible to rectify once concrete is casted and can be easily identified/ rectified by providing a kicker.

Having a kicker you can physically see what's not right both in terms of cover and by looking along the kicker bases gives a quick visual indication of what needs to be moved. 1. 2. 3. 4. 1. 2. Bar Bending Schedule for 'RCC' Beam - Trade Union | Construction Document | Direct Cost | Indirect Cost. We will take one simple example for reinforcement quantity calculations for a concrete beam. Consider a beam of clear length of 6550mm, 250mm wide by 450mm depth.

It consists of 2-20 and 1-12 diameter bars at top, 2-25 and 1-20 diameter bars at the bottom. Diameter of stirrup is 10mm spaced at 150mm/ 200mm/ 150mm center to center. Clear cover to reinforcement provided is 25mm and lap length is 45d. Now we will calculate the length of reinforcement based on shapes of reinforcement required for reinforced concrete beam in above example. We will start with top reinforcement, Bar mark, 92 Bar shape of 92 is as shown below, Length of 92 = clear distance on drawing detail + bend length Bend length = consider as 200mm Bar mark, 93 Bar shape of 93 is as shown below: Length of 93 = clear distance on drawing + 2 (lap length*) = (6500 - 2 x 2150) + 2 x 550 = 3300 *lap length = 45d = 45 x 12 = 540 = consider as 550mm Now we can calculate bottom reinforcement of concrete beam, Bar mark, 94 Bar mark, 95.

Function of Concrete in Civil Engineering - Trade Union | Construction Document | Direct Cost | Indirect Cost. Is most common and widely used man made building materials in the whole world. The distinctive characteristics like strength, durability, low-maintenance, energy-efficient, sustainability are the explanations for wide selection usage of concrete within the field of engineering. In this article, we discuss about function of concrete in civil engineering. The major uses of concrete are, Concrete Dams The characteristics of concrete like high strength and unit weight make it a more suitable material for the erection concrete dams. Residential Buildings To build small buildings, villas and even high-rise buildings are done using concrete with traditional or modern form-work as a way of construction of the skeleton from foundations to the slabs and of course columns and beams.

Commercial Buildings The use of concrete in commercial buildings makes it safer than using most other construction materials. Roads or Driveways Marine Construction Culverts and Sewers Concrete Foundations Fences Concrete Bridges. Construction Document | Construction Project Records | Types | Uses - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Construction document is mainly used to record keeping purposes, in this article you gonna learn about various kind of construction document and their uses, example. Program Records These records set out the Contractor’s plan for carrying out the works and, upon being updated, record the progress status of the works at the agreed intervals and upon completion of the works. There are a number of sub-categories of programme records as set out below.

"construction document" Read more,Trade Union | Trade Union Definition | Labor Union Programmes Typically there are multiple programmes created and maintained in relation to the works as follows: (a) tender programmes; (b) Contractor’s proposed programmes (submitted for the purposes of acceptance as the Accepted Programme); (c) Accepted Programme; (d) Updated Programmes (the last of which should be an as-built programme); (e) proposed revised programmes submitted by the Contractor; (f) detailed short term look ahead programmes; and (a) design; (b) labour;

How to Reduce Cost of Formwork in Construction? - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Increasing the complex design of formwork is the reason to increasing the project's total cost and it's accounts for up to 60% of the concrete structure's total cost. In this letter we will discuss about How to Reduce Cost of Formwork in Construction Project. Use the whole project's unified framing scheme. This would improve laboratory learning and reduce the cost of materials for mobilization and formwork. Even on large projects, two framing schemes are justifiable.For all beams and joists, use the same thickness as reduced costs will outweigh the increased cost of steel and concrete. When beams are heavily loaded, their width can be as high as their depth as four or five times. Hold diagrams of the same beam even if the loads and lengths are not the same, so change the load resistance strengthening ratio.

To reach standard dimensions of columns, joists, and supports, space columns consistently save resources by simplifying construction. Constant floor-to-floor height is recommended. Trade Union | Trade Union Definition (Labor Union) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Trade union or a labor union is an association of workers forming a legal unit or legal personhood, usually called a "bargaining unit", which acts as bargaining agent and legal representative for a unit of employees in all matters of law or right arising from or in the administration of a collective agreement.Labour unions typically fund the formal organization, head office, and legal team functions of the labour union through regular fees or union dues.

The delegate staff of the labour union representation in the workforce are made up of workplace volunteers who are appointed by members in democratic elections. Today, unions ar typically fashioned for the aim of securing improvement in pay, benefits, operatingconditions, or social and political standing through negotiation|negotiation|dialogue|talks} by the exaggeratedbargaining power wielded by the band of the staff. Trade Union Definition What is the Trade Union law in Sri Lanka? Who can join a Trade Union? Trade Union Definition.

Steps Involved in Concrete Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Concrete has been referred to as human race construction material from the nineteenth century. In recent days, the evolution of use of concrete technologies has been huge. But the standard concrete construction technology holds a major role in worldwide construction. The traditional concrete construction technology involves material estimating, surface preparation, building formwork, placing reinforcement, mixing, pouring, finishing and curing of concrete. 1. Materials Estimating To keep the wonderful quality of the connected concrete work, the blending proportion of concrete ingredients ought to be measured properly and accurately. Finally, the correct measure of the concrete ingredients are often distributed by the batching method. Materials estimating is that the method of hard amount or proportion of materials like cement, aggregates, water, etc. area unit measured on the premise of either weight or volume to organize the concrete combine. 2. 1. 2. 3. 3.

Good Formwork Should be; 4. 5. 6. Types of Formwork (Shuttering) in Concrete Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Types of Formwork (Shuttering) for Concrete Construction Formwork or Shuttering is a type of mold used for the concrete construction work such as; slab, beam, and columns. In Sinhalese we called as හැඩයම් ලෑලි, හැඩයම, පැති ලෑලි etc. Mostly used term in construction sector is formwork. Formwork types in concrete construction is depending based on their raw materials and structural components. Formworks can also be named based on their type of structural member construction such as slab formwork, beam formwork, column formwork etc. In construction of formwork takes time and involves expenditure up to 20 to 25% of the cost of the structure or even more. Design of these temporary structures are made to economic expenditure.

Timber is the mostly used/ common material used for formwork. A good formwork should satisfy the following requirements, Economy in Formwork The following points are to be kept in view to effect economy in the cost of formwork, Timber Formwork Advantages of timber Formwork. Rate Analysis for Building Construction Works - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Some of Building Regulations in Sri Lanka - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Cost Estimating Method in Building Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. What is Contract? - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Variation in Construction Contract - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Traditional and Modern Quantity Surveying Practice - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Subcontracting in Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Turning the Cost Estimate into a Tender - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Technical Auditing in Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Labour Law in Sri Lanka and Industrial Dispute - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Alternative Dispute Resolution & Dispute Resolution in Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. General Rules of Abstracting in Taking off Quantities - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Legal System in Sri Lanka - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Various Types of Contracts | Type of Civil Engineering Contract - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Type of Form of Contract in Construction Industry | FIDIC Books - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Definitions of Contractual Claim's | FIDIC Red Book - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

FIDIC Forms of Contract and Their Application's - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Contractor All Risk Insurance (CAR Policy in Construction Contract) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Timber in Building Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Functions of a Quantity Surveyor in Industry - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Procurement System and Method in SriLanka - Sinhala - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Quantity Surveyor Duties in Pre-Contract Stage - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Procurement Methods in Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Cost Planning Process in Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Briefly Explanation About Quantity Surveyor Duties in Pre-Contract Stage - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Cost of Project | Direct Cost and Indirect Cost - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Construction Insurance Companies For Homeowner - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. How to Write Contractual Letter...? | Contract Offer Letter - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Tips to Avoid Ambiguity in Construction Contracts | Rules of Interpretation and Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Procedure of Contractual Claims in Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Interim Valuation | Bid Bond - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Who is Quantity Surveyor ?... - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Basic Concept of Construction Risk Management - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Introduction to Taking off Quantities | Take off Sheet - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

What is Liquidated Damages in a Construction Contract? - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Road Construction and Geometric Design of roads (part 01) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Calculation of Concrete | Quantity Calculation of Concrete - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Building Estimating Software in Construction Sector - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Free Construction Software - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Most Common Types of Construction Contracts | Lump Sum Contract - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. A Brief Introduction about FIDIC Contracts | Form of Contract - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Taking off Sheet | Taking off in Construction - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. How to Approach Delay Analysis in Construction Contract | EOT Claim - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Types of Insurance on Construction Project | CAR Policy - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Purpose of Bonds and Guarantees of Construction Contract - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Quantity Calculation of Cement and Sand in Mortar - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Common Factors for Construction Dispute - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Road Construction and Geometric Design of roads (part 02) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Standard Method of Measurement | Measurement in Quantity Surveying - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Bill of Quantities (BOQ) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Concrete Foundation Work in Building Construction (part 01) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Taking off Abbreviations - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Concrete Foundation Work in Building Construction (part 02) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.

Principles of Taking off Quantities In Taking off Sheet (T.D.S) - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Basic Concepts of Economics in Construction Industry - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. Methods of Bill of Quantities - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management. What is Manufactured sand (M-Sand)? - Quantity Surveyor4u | Taking off Quantity | Construction Risk Management.