Either the wet-mix process or the dry-mix process may be used to produce shotcrete. Dry mix process Batching and Mixing Aggregate and cementitious materials shall be batched by mass. Equipment for batching by mass shall be capable of the accuracy specified in ASTM C94. The mixing equipment shall be capable of thoroughly mixing materials in […]
Construction Estimating gives a reasonably accurate idea of the building cost An estimate is necessary to give the owner a reasonably accurate idea of the cost to help him decide whether the work can be undertaken as proposed or needs to be curtailed or abandoned, depending upon the availability of funds and prospective direct and […]
A construction manager is known by various other profile names – constructor, construction superintendent, general superintendent, production manager, project manager, general construction manager, executive construction manager, general contractor, contractor and subcontractor are some of them. The job profile of a construction manager may require him to be available 24×7, to deal with the ‘n’ number […]
Highway construction is generally preceded by detailed surveys and subgrade preparation. The methods and technology for constructing highways has evolved over time and become increasingly sophisticated. This advancement in technology has raised the level of skill sets required to manage highway construction projects. This skill varies from project to project, depending on factors such as […]
In order to complete a project, the project manager needs to process it according to its various stages, such as initiation, development, production or execution, closing, and maintenance. a) Initiation: This stage helps in determining the nature and possible scope of the development. The job of a project manager includes reviewing of the current operations, […]
While construction contracts serve as a means of pricing construction, they also structure the allocation of risk to the various parties involved. The owner has the sole power to decide what type of contract should be used for a specific facility to be constructed and to set forth the terms in a contractual agreement. It […]
Antiwashout underwater concrete is an underwater concrete that has improved resistance to segregation as a result of adding an anti-washout admixture. Antiwashout underwater concrete (or underwater antiwash concrete) shall have the required strength, durability, compactness, and ability to protect steel materials, and the scatter in quality shall be small. Also, the concrete shall have a […]
Modern design may be all about sleek lines and strong colours these days but can you mix it effectively with period styles? To do this you need to understand exactly what ‘period’ means, as it is such a broad term that covers many types of styles. Essentially, a period design can cover a specific historical […]
Improve your house for spring season When the long cold months have come to an end, we can look ahead to spring and the changes it can bring to our lives as well as our homes. Is your home in need of some revitalization and could you use a little more energy yourself? Following are […]
Initial Curing Immediately after finishing, shotcrete in tunnel areas shall be kept continuously moist for at least 3 days. In non tunnel application shotcrete shall be cured using any method as described below. One of the following materials or methods shall be used: Ponding or continuous sprinkling. Absorptive mat or fabric, sand, or other covering […]