Consider the load, material (concrete, brick, or masonry), application demands (vibration, moisture), and installation method. Always consult manufacturer specs and opt for a stronger anchor when in doubt.

Sleeve anchors are available in various strengths for light to heavy-duty applications. They are suitable for securing beams, railings, shelving units, window frames, or concrete furniture.

Remember, prioritizing quality anchors, adhering to manufacturer specifications, and consulting professionals for high-demand projects will ensure your project's success and longevity. So, the next time you need to secure something to concrete, don't underestimate the power of the right concrete anchor.

The use of drones by police services across Canada is increasingly viewed as a method to gain a top-down perspective on investigations. But there are many who worry about the privacy implications of using such a technology, concerns the police force says it is aware of.

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Drones are expect to serve as a complement to the existing police helicopters, according to CPS. The police service uses DJI Mavic platforms for its operations.

Concrete anchors are a vital component for securely attaching objects to concrete surfaces. By understanding the strengths, functionalities, and selection factors outlined in this article, you can confidently navigate the world of concrete anchors.

Lag shields, also known as lead shields, are another popular choice for light to medium-duty jobs. These metal sleeves feature internal threads and an expandable exterior. They work with lag screws, providing a strong hold in concrete, masonry, and brick.

Split drives are suitable for light to medium-duty applications in concrete, brick, or masonry. Common uses include securing cabinets, shelves, electrical fixtures, or cladding materials.

When it comes to police and surveillance technology, Keenan, the author of Technocreep, said we need to have a much more evolved view of the landscape.

WedgeAnchor

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What are the best concrete anchors? Let’s explore the different types and strengths of top anchors and learn how to choose the right one for your project.

Application - Think about the application's demands. Will the anchor be exposed to vibration, moisture, or chemicals? Choose an anchor material and type that can withstand these conditions.

MasonryAnchor

He said it's "certainly legitimate" that most of the flights are for traffic incidents. If a car was about to explode, for instance, one wouldn't want officers to be in danger. Plus, drones are able to capture images from traffic incidents that wouldn't be accessible otherwise.

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Concretescrew

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"You're not allowed to look into somebody's house. The problem with the drone is, you can look into their backyard, maybe you can look through their windows," Keenan said.

There's also the possibility that one may not even be able to make a decision regarding whether they'd like to participate in such an event but not be observed by drone technology.

Joel is a reporter/editor with CBC Calgary. In fall 2021, he spent time with CBC's bureau in Lethbridge. He was previously the editor of the Airdrie City View and Rocky View Weekly newspapers. He hails from Swift Current, Sask. Reach him by email at joel.dryden@cbc.ca

The Calgary Police Service has deployed drones 96 times this year as of Nov. 30. That's the same as all of last year but nearly double what CPS deployed in 2021, according to police data.

Installation method - Consider your comfort level and available tools. Some anchors require setting tools, while others are installed with a hammer or screw.

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He cited the U.S. Supreme Court case of Kyllo v. United States. It involved federal agents using a thermal imaging device outside the home of Oregon resident Danny Lee Kyllo, whom they suspected of growing marijuana. That was deemed to be an invasion of Kyllo's privacy under the Fourth Amendment.

They are ideal for anchoring into concrete slabs or walls, and suitable for securing beams, cable trays, pipes, or machinery.

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"Are they providing people the opportunity to meaningfully participate, as in, you know that there will be drone surveillance at one of these events?"

"In all cases, [drone] pilots are adhering to the Canadian Aviation Regulations and Canadian Charter of Rights and Freedoms. The safety and privacy of the public is our top priority," CPS wrote in a statement.

In the view of the Canadian Civil Liberties Association, it gets concerning when drones are used to monitor large-scale events, like demonstrations or protests, says Daniel Konikoff, interim director of the association's privacy, technology and surveillance program.

Split drive anchors are a relatively new type of anchor gaining popularity. They are installed by hammering a fluted pin into a pre-drilled hole. The pin splits and expands, creating a secure hold in concrete, brick, or masonry.

CPS says it first began operating drones in its traffic section in 2015 for collision reconstruction investigations. It expanded their use to its tactical unit in 2020, and uses drones in its digital unit to provide footage for internal training and both internal and external media content.

Tom Keenan, a professor in the School of Architecture, Planning and Landscape at the University of Calgary and author of Technocreep, The Surrender of Privacy and the Capitalization of Intimacy, took a look at the numbers provided by CPS.

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"Advances in technology will allow the CPS to conduct collision scene and crime scene investigations more efficiently and make first response and tactical operations safer for the public and our members," CPS wrote.

Threaded rod anchors are ideal for anchoring large objects or when through-bolting is required. They consist of a long, threaded rod with a mechanical or adhesive expansion mechanism at one end.

Drop-in anchors are ideal for pre-drilled, uncracked concrete. They consist of a threaded expander bolt and a wedge mechanism. The anchor is inserted into the hole, and the wedge is driven down with a setting tool, expanding the anchor and creating a secure hold.

There's a question of accountability, here. Who is keeping the drone footage, and who is checking to see what the drone was used for? Keenan said police forces are still struggling with those questions.

Wedge anchors are ideal for heavy-duty anchoring in concrete - they are suitable for securing beams, structural elements, machinery, railings, or safety equipment.

Yes, consulting an engineer is recommended for critical projects involving significant weight loads to ensure proper anchor selection and installation.

Weight load - Consider the weight of the object you are anchoring. Choose an anchor with a holding capacity exceeding the anticipated load.

These anchors are typically installed with a setting tool and are suitable for heavy-duty applications, such as securing beams, columns, structural supports, heavy machinery, or other large objects to concrete.

A simple and versatile option, machine screw anchors consist of a threaded metal body that expands when tightened with a screw. They are suitable for light-duty applications like securing cabinets, shelves, or electrical and light plumbing fixtures.

They are fast and easy to install, suitable for light to medium-duty applications, but may not work well in weak concrete or heavy-duty scenarios.

"The primary issues have to do with transparency. Are people notifying people that they are using drones at the outset, before folks come out to a demonstration?" Konikoff said.

CPS says it plans to add a drone co-ordinator role sometime in 2024. That person will be expected to maintain existing programs and integrate new ones.

"It can have this chilling effect, where perhaps we're less comfortable going out in public and demonstrating our points of view under the fear or concern that we are being watched."

Spill Bund 1.5m x 1.5m is a flexible alternative for the portable, temporary or secondary containment of stored liquids and can be driven over.

It is a priority for CBC to create products that are accessible to all in Canada including people with visual, hearing, motor and cognitive challenges.

Tapcon

Concrete is a fantastic building material, offering incredible strength and durability. But when it comes to attaching objects to concrete, standard screws and nails won't do. That's where concrete anchors come in. These specialized fasteners provide a secure hold for a variety of applications, from hanging cabinets to securing heavy machinery.

Sleeve anchors function similarly to wedge anchors but offer more versatility. They consist of a hollow sleeve with a separate expansion wedge and threaded bolt. This allows for using different bolt diameters with the same sleeve anchor.

Lag shields are suitable for light to medium-duty anchoring in concrete, masonry, and brick. Common uses include securing cabinets, shelves, grab bars, and furniture.

"But I worry about the category called 'tactical,' because maybe that's flying over protests. Maybe you're identifying people in the protests, or documenting things. And no camera angle is perfect," he said.

Concrete screws are a convenient option for anchoring directly into concrete. They feature an aggressive thread design that cuts into the concrete as you screw them in. They are suitable for light to medium-duty applications in concrete and offer the advantage of fast and easy installation.

Strike anchors are a variation of lag shields but offer a more secure hold. They feature a driving pin that expands the anchor body when hammered in, creating a tight fit within the concrete. Strike anchors are ideal for projects requiring vibration resistance.

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Plastic anchors are the least robust option. They expand as you drive a screw into them, wedging themselves into the concrete. These anchors are best suited for very light-duty applications, like hanging pictures and small mirrors or securing light cables/wires to concrete.

Wedge anchors are considered one of the best concrete screws due to their exceptional strength. They consist of a threaded bolt with a wedge-shaped mechanism. As you tighten the nut, the wedge expands the anchor body, creating immense holding power.

It’s best to use them for light to medium-duty anchoring applications, such as securing beams, railings, or HVAC equipment.

Wedge anchors are ideal for heavy-duty applications, providing exceptional strength and reliability for securing beams, machinery, or structural elements.