Tool Time Thursday: Why Every Concrete Crew Needs a Mag Float

Tool Time Thursday: Why Every Concrete Crew Needs a Mag Float

RLW: The Mixer Minute

Before a broom ever touches the surface, there’s a crucial step that comes first—floating the concrete. And when it comes to floating, few tools are as essential as the magnesium float.

A mag float can help smooth out freshly poured concrete, bringing paste to the surface and prepping it for a final finish. It can also help eliminate small imperfections and fill in low spots, giving you a more consistent and workable surface.

A Quick History

The float has been a key part of concrete finishing for generations, but magnesium versions gained popularity in the mid-20th century. Lighter than traditional wood, magnesium floats became a go-to tool for their strength, control, and ability to produce a tighter, cleaner surface.

Types of Mag Floats

Magnesium floats come in a few different styles and configurations:

Hand Floats: Designed for precision work and small pours, these are great for edging, corners, or detail areas.
Bull Floats: Used for larger slabs, these extend the operator's reach and can help cover more ground quickly.
Channel or Rounded Ends: Different ends can offer more control, reduce marking, or help with specific finishing techniques.
Soft Grip or Wood Handles: Comfort is key for long days on the job, so mag floats come with different handles to fit user preferences.

No matter the size or scope of the job, mag floats can help create a professional finish that’s ready for whatever comes next—whether it’s a trowel, a broom, or a stamp.

⚠️ Legal Disclaimer:

This blog post is intended for informational purposes only and should not be taken as professional, legal, or construction advice. Every project is unique, and conditions may vary. RLW Concrete LLC is not liable for any actions taken based on this information. Always consult with a qualified professional for your specific needs.

Comments

Why It Matters Wednesday: Why Pozzolans Matter

Why Pozzolans Matter Concrete is more than just cement, water, and stone. One of the most important ingredients used to improve concrete performance is something called a pozzolan . Pozzolans play a critical role in making concrete stronger, more durable, and longer lasting. What is a Pozzolan? A pozzolan is a material added to concrete that reacts chemically with calcium hydroxide during the curing process. This reaction strengthens the internal structure of the concrete and improves its overall performance. Common pozzolans include: Fly ash Silica fume Slag cement Natural volcanic materials These materials enhance concrete beyond what cement alone can achieve. Why Pozzolans Matter Pozzolans significantly improve concrete quality in several ways: Increased Strength Pozzolans strengthen the internal bond within the concrete, resulting in a stronger final product. Improved Durability Concrete with pozzolans is more resistant to weather, moisture, and wear....

Concrete 101: A Brief History of Concrete

Concrete 101: A Brief History of Concrete RLW: The Mixer Minute Concrete is one of the most widely used building materials in the world today—but it’s not a modern invention. Its history stretches back thousands of years, proving just how reliable and versatile it is. Here’s a quick look at concrete through the ages. ✅ 1. The Ancient Origins The earliest forms of concrete date back to ancient civilizations. The Egyptians used a mixture of mud and straw for bricks and later developed a lime and gypsum mortar. But it was the Romans who perfected the use of concrete, mixing volcanic ash with lime and water to create structures that still stand today. ✅ 2. Roman Concrete Marvels The Romans built roads, aqueducts, and massive structures like the Colosseum and the Pantheon dome using concrete. Their formula allowed the material to resist cracking and even grow stronger over time when exposed to seawater. ✅ 3. Concrete Disappears—and Returns After the fall of the Roman Empire, ...

FAQs: Why Does Concrete Crack?

FAQs: Why Does Concrete Crack? One of the most common questions we hear at RLW Concrete LLC is: “Why does concrete crack?” The short answer? All concrete cracks. The important part is why it cracks and how it’s managed. Let’s break it down 👇 ❓ Is cracking normal in concrete? Yes. Concrete is extremely strong, but it is not flexible. As it cures, settles, and reacts to its environment, some cracking is completely normal and expected . ❓ What causes concrete to crack? 1. Shrinkage During Curing As concrete dries and hardens, water evaporates. This causes the concrete to shrink slightly , which can lead to surface cracking. This is the most common cause and usually cosmetic. 2. Temperature Changes Concrete expands when it’s hot and contracts when it’s cold. In Pennsylvania’s freeze–thaw climate, this constant movement puts stress on the slab, which can cause cracking over time. 3. Ground Movement or Settling If the soil beneath the concrete shifts, settles, or ...

RLW: The Mixer Minute

Search This Blog