Can Carrots Make Concrete Greener and Stronger? This is the best and the most accurate estimate that can be prepared. A revised estimate is a detailed estimate of the revised quantities and rates of items of works originally provided in the estimate without material deviations of a structural nature from the design originally approved for a project. Filed in Civil Engineering, Project Management on Sep.17, 2012 An estimate is a calculation of the quantities of various items of work, and the expenses likely to be incurred there on. Revised Cost Estimate. What are the Methods of Interpolation of Contours? This method is followed in cases such as school building where there are so many class rooms. Such an estimate is framed after knowing the rate of similar works and from practical knowledge in various ways for various types of works. General Specification – The general specification forms the general idea for the project. But here the reason for the preparation of estimate must have a strong & valid reason like sudden increase in cost of materials. This is a complete estimate or list of quantities for all work items required to complete the concerned project. Calculate the number of workers that are to be employed to complete the work within the scheduled time of completion. Venice: Foundation Details of the Biggest Floating City in the World. The increase may be due to sudden increase in cost of materials, cost of transportation etc. When the sanctioned estimate exceeds by 5% either due to the rate being found insufficient or due to some other reasons, a fresh estimate is prepared which is called a Revised Estimate. Drawing – The drawing is the basis from which quantities of various items for a work are calculated. Revised Estimate: This is required when the sanctioned amount is exceeded due to change of rates or addition of works fairly dependent on the work at first sanctioned. Which are the highest paying jobs in the civil engineering field? After completion of a work, it is necessary to keep the maintenance aspect in view for its proper functioning. (8) Supplementary estimate. A comparative statement on the last page of the estimate is attached giving there in the reasons of the increase of cost in case of each item. A comparative statement on the last page of the estimate is attached giving there in the reasons of the increase of cost in case of each item. During the progress of the work, some modifications or additions due to material deviation of a structural nature from the design originally approved may be thought necessary for the development of a project. Sign Up to The Constructor to ask questions, answer questions, write articles, and connect with other people. The positive gradient... Plinth area of a building means Length x Breadth ( roofed portion only ) excluding plinth offsets. When the sanctioned estimate exceeds by 5% either due to the rate being found insufficient or due to some other reasons, a fresh estimate is prepared which is called a Revised Estimate. Mount Rushmore: Carving the Spirit of America, Rework in Construction: Its Sources and Causes, Calculate Quantities of Materials for Concrete -Cement, Sand, Aggregates, Methods of Rainwater Harvesting [PDF]: Components, Transport, and Storage. Supplementary estimate is required due to some new works or due to change of design, so additions or revisions of drawings may be necessary. What is gradient and types of gradient in transportation engineering, Advantage and benefits of synthetic fibres in concrete flooring and plastering applications. Assess the requirements of tools and equipment required to complete the work according to the program. Therefore, it is necessary to list the probable costs or develop an estimate for the proposed work from its plans and specifications. An estimate is prepared for the items which require renewal, replacement, repairs, etc. The abstract shows the original estimate and total amount of the sanction required including supplementary amount. Different Types Of Estimates: There are different types of estimates which […]

Go ahead and login, it'll take only a minute. The total of these probable expenses to be incurred on the work is known as estimated cost of the work. Download our mobile app and study on-the-go. It also enables him to understand the probable cost that may be incurred to complete the proposed work. [PDF]. This specification of work serves as a guide to execute the work to the owner’s satisfaction. It is accompanied by a comparative statement abstract form showing the probable variations for quantity, rate, and amount for each item of work of the project compared with the original estimate side-by-side stating the reasons for variations. Before the start of any work for its execution, the owner of the builder should have a thorough knowledge of the volume of work. Creates various reports like Justification statements and Comparative statements with respect to rate analysis in the Master library. The method of preparation is the same as that of a detailed estimate, and it should be accompanied by a full report of the circumstances which render its necessity. Justify the investment from the benefit-cost ratio.

This estimate is prepared when the rate of previously submitted estimate increases by 5% or more than that. Standing circulars for taxes and insurance etc. A revised estimate is a detailed estimate of the revised quantities and rates of items of works originally provided in the estimate without material deviations of a structural nature from the design originally approved for a project. © 2009-2020 The Constructor. Mumbai University > CIVIL > Sem 7 > Quantity survey, Estimation and valuation.

No comparative abstract form is required. How Important is it to Prepare an Approximate Estimate? Login to The Constructor to ask questions, answer people’s questions, write articles & connect with other people. Generates schedule of quantities. Quantity of Cement and Sand Calculation in Mortar, Types of Foundation for Buildings and their Uses [PDF]. Civil engineering softwares for estimation provide provide graphic representation of the estimated work. The quantity of each item of work is worked out from the respective dimensions on the drawing of the structure. To ascertain the necessary amount of money required by the owner to complete the proposed project. It is accompanied with a comparative statement abtract from showing the probable variations for quantity, rate and amount against each item of work involved in the project. Fix up the completion period from the volume of works involved in the estimate. Invite tenders and prepare bills for payment. What is the reinforced concrete deep beam and where it used? This estimate is prepared when there is a necessary for additional work.

Become VIP Member. A supplementary estimate includes all such works. Gradient Gradient is the rate of rise or fall along the length of the road with respect   to the horizontal. The minutest details can help him understand if the work can be completed within the stipulated time frame and budget. This is required when the sanctioned amount is exceeded due to change of rates or addition of works fairly dependent on the work at first sanctioned. Revised estimates, typically developed if project requirements change, or as design is developed, should also be reviewed by management staff, revised as necessary to reflect management comments, and then approved. Contents1 Different Types Of Estimates:2 1. Detailed Estimates:4 3. How to rectify the old cement pipeline leakage problem? For fresh technical sanction, a revised estimate is prepared and submitted. The drawings consist of the plan, the elevations, and the sections through important points. Such a detailed estimate is prepared for technical sanction, administrative approval, and also for the execution of a contract with the contractor. Find answer to specific questions by searching them here. All Rights Reserved. In this, the nature and class of work and the names of materials that should be used are described. What is gradient in transportation engineering.

The total estimated cost of maintenance of a structure is generally kept within the prescribed limits on the percentage basis of the cost of construction of the structure and its importance.

Detailed Specification – Detailed specification describes every item of work in the estimate. An estimate is prepared by calculating the quantities from the drawings for various items and multiplying them with the unit cost of the item concerned.