Embodied carbon in construction is defined as the carbon emissions associated with manufacturing and transporting construction materials and the process of construction. Buildings account for 39% of global greenhouse gas (GHG) emissions: 28% from building operations and 11% embodied carbon from building materials and construction. In some cases, embodied carbon can account for as much […]
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A construction contractor is an individual who provides independent and professional services to third-party employers in the construction industry. Construction contractors plan, monitor, and manage various construction projects, like residential, commercial, or public work projects. In addition, construction contractors are also supposed to obtain building permits and licenses for the projects. Most of the contractors […]
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it is observed that formation of efflorescence is high in coastal areas. process of efflorescence formation in cementitious materials is understood. only reasons to having high risk of efflorescence formation are needed to be cleared. please advice
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What is the percentage of carbon in wrought Iron?
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Which country provides highest salary to the civil engineer?
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What are the important points of FIDIC Contract we should keep in mind during tendering?
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What is the difference between Airport, Aerodrome and Airfield?
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There are many types of lintels..So which lintels should be used in different situations..Which factors to consider while designing a lintel for particular type of construction?
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What are the additives or aggregates needed for 3D printed Concrete?
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What is the height of brickwork after which an extra cost for brickwork is provided as per schedule of rates?
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Acoustic emission (AE) is defined as the physical phenomenon in which a material generates elastic waves when subjected to stress or deformation. These signals are registered using a non-destructive test method (NDT) called the acoustic emission test. An acoustic emission test is conducted to monitor a member’s structural health to assess its retrofitting and repairing […]
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Progressive collapse or disproportionate collapse of a building occurs when the failure of a single structural element leads to the failure of other components in a progressive manner. The failure starts with the primary structural element, accompanied by the failure of adjoining elements, finally resulting in structural collapse. Progressive collapse is associated with the collapse […]
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The required load-carrying capacity of columns damaged due to earthquake can be regained by retrofitting the inclined columns. During earthquakes, the top and bottom parts of a column are most vulnerable to shear forces. If the forces are large, the column may lose most of its strength and may get inclined under seismic and vertical […]
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The Lakhta Center tower is a 462.7 m-tall, 87-story building in St. Petersburg, Russia. It is presently the tallest skyscraper in Russia and Europe, and the fourteenth-tallest building in the world. The tower recently won the Emporis Skyscraper Award, the world’s most renowned prize for high-rise architecture, for the year 2019. The skyscraper is part of the Lakhta Center […]
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Lap length or overlapping length is the length at which two bars of a column are spliced or overlapped in order to maintain the continuity of the bars throughout the length of the column. This method of overlapping two reinforcement bars is called lap splicing. Lapping of reinforcement bars facilitates the secure transfer of loads […]
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We, the constructors, build the world. We all have been in a position where our construction sites become everything to us. The attachment between a constructor and his construction site is something unparalleled and can’t be found in any other profession. What’s Your Construction Site Story? Today, we invite you to share your construction site […]
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Climbing formwork is a special type of formwork that rises along with the progress of vertical concrete construction. It can move on its own by using an electric or hydraulic jack. Such formworks are also called self-climbing formworks. It is an effective solution for structures requiring seamless wall units or for high-rise structures with repetitive […]
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Machine learning and artificial intelligence have long been in the construction industry to make some real impactful ripples. After almost two years of development in Thornton Tomasetti’s CORE lab, engineers have created a computer-vision, machine-learning algorithm known as the Thornton Tomasetti Damage Detector (T2D2), that can help identify damage to a building’s exteriors through videos […]
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Concrete slabs are structural elements used to create flat horizontal surfaces, like floors, ceilings, and roof decks. They support and transfer the loads safely from columns to walls. They are commonly made of reinforced concrete with their top and bottom surfaces parallel to each other. Their thickness is dependent on the load imposed on them […]
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A swarm of robots turning themselves into bridges, buildings, vehicles, and what not! Sounds like something out of a sci-fi movie? Not anymore. Researchers at MIT and the US Army are working on robot swarms, a bunch of mechanical metamaterials that can assemble to form any structure. The concept is simple—you open a box, and […]
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A list of the top trending construction terminologies of the week.
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Bored pile foundation or drilled shaft foundation is a commonly used foundation for supporting heavy vertical loads. It transfers the load to the soil below or rock strata with sufficient bearing capacity and reduces the settlement of the structure. The construction of the bored pile is divided into two phases: the drilling phase and the […]
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The minimum reinforcement ratio is the lowest possible quantity of steel that should be embedded in structural concrete elements to prevent premature failure after losing the tensile strength. The minimum reinforcement ratio controls the cracking of concrete members. The maximum reinforcement ratio is the largest steel area that can be put into concrete members like […]
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Boston Dynamics’ famous robot dog, Spot, is widely known for its versatility. After demonstrating its ability to pull trucks, work on oil rigs, and even herd sheep, the canine-like bot is now surprising everyone with its role on construction sites. The bot was recently seen helping Foster + Partners with its ongoing Battersea Roof Gardens […]
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The construction/engineering sector is identified as the most corrupt sector in the world. Malpractices like extortion, bribery, and fraud in construction projects can have a damaging effect on the developing as well as the developed countries. As per the American Society of Civil Engineers, corruption accounts for around $310 billion of global construction market cost […]
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It’s a well-established fact that metal buildings are strong and durable and serve as an excellent option for cold and snowy climates. However, to ensure maximum advantage, roof maintenance and snow removal should be performed regularly. A number of factors are considered for the optimization of metal panels in such conditions. For instance, a proper […]
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Outriggers are interior lateral structural systems provided to improve the overturning stiffness and strength of high-rise buildings. It is a lateral load resisting system that is located within the building. The whole system consists of a core structure connected to the perimeter columns of the building by means of structural members called outriggers. The outriggers […]
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Canada-based infrastructure technology company, Niricson, has developed a unique drone-based data collection and damage-assessment system to inspect and detect problems with aging infrastructure. The system was recently put into use for inspecting dams for BC Hydro and could soon play a pivotal role in the renovation and maintenance of aging tunnels, bridges, and other types […]
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Materiality in architecture is a concept which deals with the selection and application of different materials or substances in the construction of a building. The concept of materiality has recently gained traction as a result of advances in the field of digital modeling and fabrication. The first thing that catches the eye while looking at […]
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Directional boring or horizontal directional drilling (HDD) is a trenchless technology employed to install underground pipes without affecting the area above the borehole. Directional boring is used for the installation of utility pipelines and conduits. Most underground boring contractors use HDD for crossings constructed along roads, existing structures, and rivers. It takes the utility from […]
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T-beams are formed when reinforced concrete floor slabs, roofs, and decks are cast monolithically with their supporting beams. Generally, formworks are placed for the bottom and sides of the beams and soffit of slabs. Bent up bars and stirrups of the beam are extended up into the slab. After that, all the elements are cast […]
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Estimation of preliminary sizes of concrete elements is crucial for the design of structural concrete elements. Initially, the designer has to determine the loads to proceed with the design works that involve calculating the dimensions of concrete members and required reinforcement area. Self-weight is one of the significant loads that a structure must support. The […]
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Consolidation of fresh concrete in congested concrete members should be performed using proper concrete pouring and compaction procedures. Otherwise, the concrete element suffers from strength deficiency and durability loss due to problems like honeycomb and poor concrete cover in addition to expensive and time-consuming repair work. Structural and seismic design requirements, embedded conduits and pipes, […]
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A list of the top trending construction terminologies of the week.
The post The Constructor’s Weekly Top 5 appeared first on The Constructor.
Textile-reinforced concrete (TRC) or fabric-reinforced cementitious matrix (FRCM) is a composite concrete material that employs textile reinforcement instead of steel reinforcement. TRC is being widely used in construction for the past two decades and is a promising solution for retrofitting and strengthening concrete structures. The fabrics or textiles used for TRC are jute, glass, fiber, […]
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The endless traffic jams and the increasing number of vehicles in cities have compelled humankind to look for alternatives other than roads. Apart from air travel, a growing number of engineers and enthusiasts have discovered a huge potential in underground transportation and find it to be a lucrative and swift option. One such initiative is […]
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A two-way slab is supported on all its four sides by beams. The supports carry the loads along both directions of the slab, therefore it is called a two-way slab. Whereas, a continuous slab extends over three or more support beams in a given direction. These slabs are constructed as a single unit with the […]
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Designers should consider possible congestions in reinforced concrete members while designing concrete structures. They should follow specifications of applicable codes to prevent congestions. Sometimes, one of the options to avoid congestion is by increasing the width of the concrete members to create adequate space. Lap splicing of steel bars would double the reinforcement ratio at […]
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The design of a reinforced concrete beam is achieved through a trial and error method. However, design codes, certain thumb rules, and past experiences can significantly reduce the lengthy design process. Initially, certain aspects of design, like geometry and self-weight, should be estimated and then checked during the design process. The applicable codes such as […]
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Cloud computing in construction is the use of virtual servers to access documents, drawings, and data relevant to a project through an internet connection. The definition of cloud is further expanded to include the use of mobile devices such as smartphones or tablets. The term “cloud computing” has emerged from the IT domain and has […]
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The selection of curing methods for structural concrete elements is governed by the size and shape of concrete members, type of concrete used, such as normal concrete or high-strength concrete, economy, material availability, labor force, in-situ versus plant concrete production, weather, and aesthetics. Curing methods are generally classified into three major groups: water retention methods, […]
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On November 8, 2020, Virgin Hyperloop conducted the first passenger test in a hyperloop pod in Las Vegas, US. The test serves as a major milestone and a huge step towards commercializing the hyperloop technology. In development for more than six years, the company is close to bringing the much-awaited concept to life. The test […]
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Due to a growing population and industrialization, migration from rural areas to urban areas has increased drastically. This has resulted in rapid urbanization, deteriorating environmental conditions, and housing problems, ultimately leading to unhealthy and irregular building practices and increased energy consumption. With the increasing energy demand, a majority of natural resources are being used in […]
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Proper understanding of the causes behind water leakage in concrete is necessary for designers and site engineers to incorporate the preventive measures. Several factors, like the use of poor-graded aggregate, overdose of admixtures, deviations from designated mix, improper concrete placement, impurities in aggregates, etc. are responsible for water leakage in concrete. Examples of some structures […]
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Graphene is a wonder material that holds the capacity to convert the oldest building materials into a greener and sustainable option. The incorporation of graphene in the concrete production process is being studied at Britain’s University of Exeter to develop a new composite material called graphene concrete. The final composite concrete obtained has twice the […]
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A watertightness test is conducted on water-containment structures to check whether undetected and incidental defects are leading to leakage of water. The types of linings used in a water-containment structure, their location (semiarid or arid area, covered or not), and ambient temperature are used as factors to determine the watertightness of a structure. The test […]
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A staircase is an important component of a building that is planned and designed based on the type and orientation of the building. Therefore, it is impossible to recommend a definite dimension for the stair without a clear idea about the building’s general design. The staircase designed must properly fit the given building plan. Staircase […]
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Tunnels are one of the breakthrough innovations in construction that bridge the gaps and connect far-off places. But maintenance of tunnels is still a challenging process, especially if the concerned route doesn’t have any alternatives. One such challenge is being tackled head-on by the team working on the renovation of the 2,600m-long Leopold II Tunnel […]
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A list of the top trending construction terminologies of the week.
The post The Constructor’s Weekly Top 5 appeared first on The Constructor.
The water absorption test determines the water absorption rate (sorptivity) of both the outer and inner concrete surfaces. The test involves the measurement of the increase of mass of concrete samples resulting from the absorption of water as a function of time when only one face of the specimen is exposed to water. The concrete specimens […]
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Dams play an extremely important role in flood control, power generation, water supply, and irrigation. However, they also pose significant threats to the downstream areas as a result of the water that they block. Despite the increasing safety of dams resulting from the improved engineering knowledge and better construction quality, a full non-risk guarantee is […]
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Celluloses from carrots are being studied as part of a research to contribute to a much stronger and environmentally friendly concrete. A group of researchers at Britain’s Lancaster University used nanoparticles from root vegetables like carrots to produce stronger concrete. They found that the strength of the concrete increased by 80% by using smaller amounts […]
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Venice, known as the floating city, lies inside a large lagoon in northeastern Italy. The city is characterized by the network of canals that crisscross this ancient town, as well as its fine palaces. Its unique canals and palaces set Venice apart from other European cities. The historical city is composed of about a hundred […]
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Approximate estimate, also known as preliminary or rough estimate, helps to find out the approximate cost of a project in a very short time. Moreover, it enables the concerned authority to consider the financial aspect of the scheme to accord sanction to the same. Preliminary investigation and preliminary surveying are enough to prepare this estimate. […]
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Mount Rushmore National Memorial, located in the Black Hills of South Dakota, is known worldwide for its massive sculpture of four of the United States’ most respected presidents. The monument is spread over an area of 517-ha landscape covered by dense pine forest. Construction of the Mount Rushmore monument commenced on 4 October 1927 and […]
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Plain concrete footing or pedestal is a shallow foundation designed to take small loads from columns without using longitudinal tension steel. These are the most economical forms of shallow foundation. To sustain temperature and shrinkage stresses, the standard codes recommend to provide distribution reinforcement bars for plain concrete footings. The design stipulations for plain concrete […]
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The World Trade Center (WTC) complex was composed of seven buildings (WTC-1 to WTC-7) on a site toward the southwest tip of Manhattan Island. The two buildings, WTC-1 and WTC-2 built in the early 1970s, were 110 stories high, dwarfing the other skyscrapers in Lower Manhattan. Both buildings were the main focus of the WTC […]
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Production of concrete is known to emit a lot of CO2– it contributes to a whopping 8% of the global emissions. However, builders haven’t been able to find a suitable replacement for this building material. Given the hazardous impact of increasing carbon emissions in the environment, a high demand for carbon-neutral products in the industry […]
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A voided concrete slab is a system that removes the non-working or excess concrete from the structural slab and replaces it with void formers. The voided slab system was invented by Jorgan Breuning of Denmark about 20 years ago. One of the main disadvantages of conventional solid slabs is their weight which not only imposes […]
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Rework is an activity in the field that is required to be repeated or undertaken again after completion of a work due to some impending correction that was necessary to be carried out during the execution of the project. In general, it can be defined as the unnecessary effort of redoing an activity that wasn’t […]
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The Louvre glass pyramid in Paris is an intricate fusion of traditional and modern architecture. It stands at the core of the Cour Napoleon courtyard of the Louvre Museum. Just beneath the pyramid is the lobby that connects the museum’s three pavilions – Denon, Richelieu, and Sully. The Louvre pyramid is the main entrance to […]
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Hydrodemolition, also known as hydroblasting or hydromilling, is a demolition technique used to remove concrete and other materials using high pressure or ultra high-pressure water jet. Compared to conventional demolition tools, hydrodemolition is an effective method to cut down concrete without affecting the substructure and other parts. The hydrodemolition process does not involve vibrations, unlike […]
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The Bandra-Worli Bridge, now known as the Rajiv Gandhi sea link, is a civil engineering marvel traversing an arc along the coastline of the city of Mumbai. The towers of the cable-stayed bridge rise gracefully towards the sky, manifesting the growing repertoire of modern infrastructure the city possesses. The iconic bridge was constructed with an […]
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There is no specific rule to determine the desired distance between reinforced concrete columns. Factors like architectural considerations, function of the building, and the structure’s load play a significant role in determining an optimum span between two reinforced concrete columns. Architectural engineers often fancy the largest possible distance, whereas structural engineers are concerned about the […]
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