Search Results for: cleaning mortar

black box fan on concrete floor with dark moisture stains on wall and floor

Overlay vs full replacement: a decision guide based on movement, moisture, and thickness

Introduction Overlay vs full replacement is a choice between patching a deck with an overlay or tearing it out and rebuilding, based on movement, moisture, and thickness. For overlays, assess whether the existing concrete can accept an overlay without excessive cracking or movement, and follow manufacturer instructions and local rules. If movement is high or […]

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Closeup of cracked frozen soil surface with ice coatings

Freeze-thaw on brick patios: bedding, drainage, and joint fill that survives

Introduction Freeze-thaw on brick patios means water trapped in bedding, drainage, and joints can crack or lift bricks when temperatures swing below and above freezing. This article covers how to select bedding, manage drainage, and fill joints so a DIY patio can survive those cycles. You’ll focus on simple checks you can do before you

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Empty garage with concrete floor and closed metal door

Dusty garage slabs: when sweeping and densifiers help and when resurfacing is the only fix

Introduction Dusty garage slabs are concrete floors that shed fine dust from the surface as you walk on them. Causes include worn surface, moisture, and exposure to chemicals or abrasion from vehicles and tools. Keeping the area swept and free of grit helps you see how bad the dust problem is and what needs doing

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wooden pier house standing above calm water at dusk

DIY slump control: consistent water measurement and batch-to-batch matching

Introduction DIY slump control means keeping the water in your concrete mix at a consistent level so every batch pours with the same workability. Use a single, clean container for water and add it in small, measured portions, then note the amount for each batch. Always follow the mix designer’s or product label guidance and

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Concrete wall formwork supported by braces at construction site

Form oil and release agents: the types that stain and how to avoid fish-eyes

Introduction Form oils and release agents are coatings applied to forms to prevent concrete from sticking. They can stain if the wrong type is used or if the application is uneven. Check the label and follow the manufacturer’s instructions to choose the right option for your form material. To avoid fish-eyes, test a small area

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Wood framing and studs in residential construction interior

Honeycombing in small walls: fixable vs structural and when to call an engineer

Introduction Honeycombing in concrete is gaps or voids that appear where the material didn’t fill around the forms or reinforcement. It often shows up as rough pockets in small walls and can be caused by improper compaction, bad mix proportions, or formwork issues. The big concern is how it affects strength and durability, especially in

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Fresh concrete poured into wooden formwork sections

Rock pockets on formed faces: prevention during pour and durable cosmetic repairs

Introduction Rock pockets on formed faces are voids left behind when concrete doesn’t fully fill the form, showing up as visible dimples or craters. Prevention starts at form setup, proper vibration, and keeping the form clean so the pour fills evenly. Check for tight joints, correct slump, and adequate consolidation during the pour. For durable

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Close-up of blue textured stucco wall surface

Repairing Stucco Behind Hose Reels and Brackets: Keeping the WRB Intact

Introduction Repairing stucco behind hose reels and brackets means fixing cracks and damage without compromising the wall and its weather barrier. Keep the WRB intact by protecting it while you remove hardware and apply patches. Use appropriate repair materials that match the stucco type and follow label directions, and avoid overloading or trapping moisture. If

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Worker with sledgehammer demolishing interior wall

Hollow-Sounding Stucco: Tap Testing, Cut Windows, and When to Stop Spot-Patching

Introduction Hollow-Sounding stucco occurs when tapping the surface reveals a hollow or loose layer beneath the finish. It’s a signal that the underlying material or lath may be compromised. Listen and feel for soft spots, and note where the sound changes as you tap around the area. Start with surface preparation by removing loose material

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Worker smoothing plaster on wall with trowel

Plaster Near Masonry Chimneys: Expansion Gaps That Prevent Heat-Cycle Cracks

Introduction Expansion gaps between plaster and masonry chimneys help prevent cracks from heating and cooling. When the chimney heats up, the brick or metal behind the plaster expands and the plaster needs room to move. Without a gap, cracks can form as parts push against each other. To set this up during a DIY job,

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