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Anchor Bolts to Finishing
Building MaterialsConcrete tools and accessories are the anchor bolts, rebar supports, forming supplies and finishing tools you need to get a pour ready, placed and finished. Get them together before the truck arrives. Supported reinforcement, properly positioned bolts and the right finishing tools give you control while the concrete is workable, when fixing a mistake is easiest.
If you’re looking for cement anchor bolts, start with the stage of the job. Cast-in-place anchor bolts go into wet concrete. Post-installed anchors go into holes drilled after the concrete hardens. Buy for that distinction first, then match the connection and the base material.
The two anchor-bolt sizes here are 1/2 inch by 10 inches and 5/8 inch by 10 inches. Both are 10 inches long; the difference is diameter. Buy the 1/2-inch bolt for a connection designed around 1/2-inch hardware and the 5/8-inch bolt for a connection designed around 5/8-inch hardware. The larger diameter is a different connection size, not an automatic upgrade.
| Anchor bolt | Diameter | Length |
|---|---|---|
| 1/2-inch by 10-inch anchor bolt | 1/2 inch | 10 inches |
| 5/8-inch by 10-inch anchor bolt | 5/8 inch | 10 inches |
Anchor bolts fasten a connection to concrete. In wood-frame construction, that includes connecting the sill plate to the foundation. A bent-bar cast-in anchor becomes embedded as the concrete hardens. An expansion anchor grips inside a drilled hole through an expanding component.
For foundation work, the structural connection requirements govern bolt diameter, embedment, spacing and distance from the concrete edge. That’s also the answer to how far apart anchor bolts should be placed: lay out the specified connection before the pour, including its spacing and edge distances. A form-mounted bolt holder keeps the bolt positioned during placement. That is useful hardware when the crew is moving concrete around the forms.
For work on hardened concrete, match the anchor to the material. Wedge anchors are for solid concrete. Sleeve anchors cover concrete, brick or block. A block wall and a solid slab call for different selection decisions, even when the attachment looks the same. Toggle anchor bolts are a separate choice involving space behind the wall; don’t treat them as interchangeable with solid-concrete anchors.
Installing an anchor after the pour means drilling the correct hole, clearing drilling dust and tightening to the anchor’s required torque. Dust can interfere with expansion, and overtightening can damage the anchor or the concrete. For concrete anchor bolt removal, unload and support the attachment first. Treat removal of an embedded cast-in bolt as concrete repair work, and use a patching mix compatible with the original concrete.
For reinforcement preparation, a rebar cutter/bender belongs on the tool list when your job requires both cutting and bending bars; match the tool to the bar size and grade you’re working.
Concrete accessories handle the work around the pour: forming, reinforcement support, anchoring, joints and protection. Concrete finishing tools handle the surface. You need both groups ready because a delay during placement can leave cold joints and an uneven finish.
For concrete mixing tools, start with the batch and how you’ll move it. Mortar pans serve mixing and transport duties, while mixing buckets handle smaller material-handling tasks. Choose the equipment around steady placement so the finishing crew can keep moving.
A bull float is a concrete slab tool for working freshly placed concrete. Hand floats give you control over smaller areas. Use magnesium or wooden floats early rather than closing the surface too soon with steel. A finishing trowel belongs at the later surface-closing stage. Those tools do different work; buying a trowel alone leaves a gap in the sequence.
Wait for bleed water to evaporate before finishing, and keep added water off the surface. Water makes the concrete easier to work for a moment but weakens the finish you’re leaving behind.
For sidewalks, patios and other outdoor walking surfaces, buy a concrete finishing broom. Its job is to texture fresh concrete after floating and edging. Broom texture is the right finish for a Montana walk that gets wet with spring snowmelt. An edger rounds the slab edge, while a finishing trowel serves work calling for a fine, closed surface.
Choose decorative-concrete stamps before laying out the joints. A joint cutting awkwardly across the pattern stays visible after the crew leaves. A test panel also lets you judge the color under the actual site conditions before committing the whole slab.
Buy curing protection with the pour supplies. Montana’s construction season runs from late April into early or mid-October, but the Flathead Valley’s frost-free window is May 19 through September 22. That leaves concrete work on both ends of the season when overnight cold belongs in the plan.
Grip-Rite orange two-layer foam concrete curing blankets come in 6-foot by 25-foot and 12-foot by 25-foot sizes, both with an R-3.3 designation. Choose between them by the shape of the area you’re covering. The 6-foot width suits narrower runs; the 12-foot width covers twice as much width per blanket on broad slabs. That’s the reason to buy the wider blanket for a larger footprint.
| Grip-Rite orange concrete curing blanket | Size | Insulation | R-value designation |
|---|---|---|---|
| Narrow blanket | 6 feet by 25 feet | Two-layer foam | R-3.3 |
| Wide blanket | 12 feet by 25 feet | Two-layer foam | R-3.3 |
Treat R-3.3 as an insulation designation, not a promise that a pour is protected down to a particular outdoor temperature. Grip-Rite distinguishes surface R-values from values measured with an air space and notes that performance changes with jobsite conditions. Choose the protection around overnight cold and how long the concrete must retain heat.
Great Falls adds wind to that decision, with winter winds above 15 mph and gusts of 30 to 40 mph. Have the covering and a way to secure it ready before placement. A warm afternoon during a chinook is a poor basis for planning the night’s protection.
Steel form stakes hold the forming setup in position. Buy them as part of the form package, with the ground and the load on the forms in mind. On a Polson lot, unsorted moraine can change from boulders to clay to gravel over a short distance. Check the actual ground along the pour instead of assuming every stake will meet the same conditions.
Rebar chairs and spacers keep reinforcement supported at its required depth. Buy them before placement so the steel starts and stays where the job requires it. Before concrete goes down, clear debris and standing water from the base. Montana spring snowmelt makes that preparation worth checking carefully.
Rebar caps need the same attention to purpose. Bright orange caps can protect against scrapes and minor impacts; impalement-protection caps are a separate choice. Where a worker could fall onto protruding rebar, choose protection intended for that fall hazard. Color alone doesn’t make that selection.
Expansion-joint material and control joints also serve different purposes. Buy expansion-joint material for the separation detail the job needs, and plan the slab’s control joints before finishing. For repairs beside existing concrete, settle the joint detail while preparing the forms, when you can still make the new work meet the old work properly.
Clean mortar and debris from tools after use, dry the metal surfaces and store them somewhere dry. Masonry brushes remove excess mortar and debris; wire brushes handle scraping work. Make cleanup part of the pour rather than leaving hardened buildup for the next job. Inspect working edges and handles before putting the tools away so damaged equipment doesn’t follow you to the next slab.
Buy the 1/2-inch by 10-inch anchor bolt for connections designed around 1/2-inch hardware, and the 5/8-inch by 10-inch bolt for 5/8-inch connections. Add a rebar cutter/bender for bar preparation, chairs for reinforcement support and stakes for the forming work.
For an outdoor walk or patio, build the finishing set around a float, edger and concrete broom. For cold-weather protection, buy the 6-foot by 25-foot Grip-Rite orange two-layer foam blanket for narrow runs and the 12-foot by 25-foot version for broad slabs. Have that protection ready when you pour.
How do you install anchor bolts in concrete?
Cast-in-place bolts go into wet concrete, where a form-mounted holder keeps them positioned during the pour. For a wedge anchor in hardened solid concrete, you drill with a bit matching the anchor’s diameter, remove the drilling dust and seat the anchor with light hammer taps. Tighten the nut to the manufacturer’s specified torque, because extra tightening can damage the anchor or the surrounding concrete.
What are anchor bolts used for?
Anchor bolts secure a connection to concrete, including the sill plate connection to a foundation in wood-frame construction. A cast-in bolt holds through its embedded portion, while an expansion anchor grips inside a drilled hole. Your choice starts with whether you’re setting the connection during the pour or attaching it after the concrete hardens.
What does a bull float do?
A bull float smooths freshly placed concrete after screeding, reaching areas you can’t comfortably work with a hand float. Keep the blade angle shallow enough that the leading edge doesn’t dig into the surface. It handles the early surface work; the final texture comes later.
How do you clean concrete tools?
Clean off mortar and concrete residue before it hardens, then dry metal surfaces and store the tools somewhere dry. A masonry brush helps remove excess mortar and debris, while a wire brush handles scraping work. Check working edges and handles during cleanup so you catch wear or damage before the next pour.
What are concrete accessories?
Concrete accessories include form stakes, anchor bolts, expansion joints, rebar supports and caps, and curing blankets. Plan them around the work each one handles: rebar chairs maintain the steel’s elevation during placement, while caps cover exposed bar ends. If a fall onto exposed rebar is possible, choose protection intended for impalement hazards; bright orange color alone doesn’t establish that protection.
Our building materials specialists can help you find the right products for your project.