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coarse aggregate size for concrete floors floor

Aggregate size| Concrete Construction Magazine

The larger sizes will require less mixing water and hence, for a given cement factor, will produce concrete of lower water-ratio than the smaller sizes. 3. The advantage of small aggregate in the water-ratio strength relationship may or may not be sufficient to offset the effects of its higher mixing water demand.

How to Achieve Success on Polished Concrete Exposed Aggregate ...

Aug 24, 2012 · Total Polish Solutions was brought in to finish what other subcontractors could not on 99,000 square feet of exposed aggregate polished and burnished concrete floors at the University of North ...

Concrete Calculator - Estimate Cement, Sand, Gravel Quantity ...

Example calculation Estimate the quantity of cement, sand and stone aggregate required for 1 cubic meter of 1:2:4 concrete mix. Ans. Materials required are 7 nos. of 50 kg bag of cement, 0.42 m 3 of sand and 0.83 m 3 of stone aggregate.

Types of Epoxy Flooring Aggregates - Amazing Garage Floors

Dec 18, 2017 · Aggregate floor covering, likewise referred to as epoxy stone floor covering, is an epoxy flooring that is covered in little stones or chips. Aggregate floor covering can look wonderful for many years to come if you understand how to care for it properly. Aggregate is made from a mix of epoxy resin and little stones or pebbles.


Jan 31, 2015 · Level the top of the base concrete and left it to set and harden. Thoroughly clean the surface upon hardening. Divide the top of the floor into panels, rectangular or square in shape, by using glass or other strips. The area of the panels should preferably less than 2 square meters.


increase in aggregate size results in a decrease in the compressive strength of concrete. Cook (1989) showed that, for compressive strengths in excess of 69 MPa (10,000 psi), smaller sized coarse aggregate produces higher strengths for a given water-to-cement ratio. In fact, it is generally agreed that, although larger coarse aggregates can be used

Farm structures ... - Ch5 Elements of construction: Floors-Roofs

Figure 5.32 shows cross sections of stabilized soil and concrete floors. An earth floor suitable for a well-drained site is shown in figure a, while a concrete floor that needs to be moderately dry is shown in b. The single-size coarse aggregate shown in c, is used to prevent capillary movement of water to the underside of the floor.

Aggregate Exposure Levels | Custom Concrete Prep and Polish

While the polish finish is the end-game for custom concrete applications, aggregate exposure in custom concrete flooring can add a dimension of beauty and interest to the finished product. Concrete aggregate exposure is popular with architects looking for a flooring option that offers design flexibility at a lower cost than terrazzo.

Coarse-Aggregate Floor| Concrete Construction Magazine

A 1:2 cement-sand mix is an outdated topping, expensive in cement but easily placed and generally prone to dust if not expertly finished and cured. Floor topping should contain coarse aggregates of a size not exceeding one-third of the floor topping thickness.

CBD-22. Concrete Floor Finishes - NRC-IRC

The aggregate should be well graded, the fine material ranging in size from ¼ inch down and the coarse material from ¼ inch up to ½ inches. The concrete should be thoroughly compacted by vibrating or by tamping and spading. Subsequent steps will vary with the type of floor finish selected.

Importance of Aggregate Gradation of concrete slab

Coarse aggregates are any particles greater than 0.19 inch, but generally range between 3/8 and 1.5 inches in diameter. Gravels constitute the majority of coarse aggregate used in concrete with crushed stone making up most of the remainder.

INDUSTRIAL FLOOR CONCRETE - Cement, Concrete, Aggregates

• AGGREGATE SIZE: The nominal size of coarse aggregate should not be greater than 25% of the thickness of the floor slab. The maximum size aggregate should be a nominal 37,5mm concrete stone, which is often blended with a 13,2mm or 9,5mm concrete stone to improve workability during construction phase. To improve the abrasion

Polished Concrete Gloss & Aggregate Exposure

"C" (eg: Deep ground polished concrete): The intentional exposure of concrete coarse aggre-gates resulting from deep grinding of specialty constructed concrete floors utilizing special con-crete mixes and methods of construction. Specification Bulletin Polished Concrete Gloss & Aggregate Exposure The Concrete Floor Con-

Polished Concrete Floors - Exposed Aggregate by Glossy Floors

Mar 01, 2017 · This particular slab with polish concrete floors and exposed aggregate was completed in Fayetteville, Arkansas. The first thing we consider when creating an exposed aggregate floor is the age . Newer concrete has a tendency to be a little harder, so it could take longer to expose the proper amount of aggregate.

Choosing Your Mix: Polished Concrete Floors

Well, now it's time for a new lesson – the polished concrete triangle. All polished concrete surfaces are made up of three key elements: sand, concrete and aggregate. It might sound simple, but we can't understate the amount of thought (and science) that goes into creating the perfect polished concrete flooring mix.

Effects of shape and size of aggregates in concrete

Hi, I am Mike Day, owner of Day's Concrete Floors, Inc. in Maine, where I've been working with concrete for 40 years now, and this website is where I can share with you all the knowledge and wisdom I've gained from installing all kinds of decorative concrete, concrete floors, concrete overlays, stained concrete and also fixing cracked or spalled concrete.

What nominal maximum sizes of aggregate are recommended?

Because maximum aggregate size can impact concrete properties such as shrinkage, and also the cost of concrete, the largest aggregate size consistent with the requirements of should be permitted. With the w/cm fixed, the larger the nominal maximum size of aggregates, the lower the cement content for a given consistency. Or, stated ...

Qualities & Properties of Aggregates for Concrete

The total volume of concrete normally consists 75% to 85% volume of aggregates that makes the cost of concrete relatively low. Aggregates act as structural filler in the concrete. Hence it is very vital to consider the qualities, as well as properties and gradation of aggregates before carry out concrete mix design.

IS 2571 (1970): Code of practice for laying in-situ cement ...

The coarse aggregate shall generally be of the following sizes: a) Base concrete ( lean cement Graded from 40 mm and below concretf! or lime concrete ) b) Cement concrete topping of Graded from 16 mm and below thickness 40 mm and above c) Cement concrete topping of thickness 25 mm

How Coarse Aggregate Affects Mix Design of Concrete?

Proper grading of coarse aggregate can minimize the possibility of segregation, especially for higher workability and improves the compatibility of concrete. The coarse aggregate grading limits are given in ASTM C33/ C33M and IS 383 – 1970 – table 2, Clause 4.1 and 4.2 for single size aggregate as well as graded aggregate.

Different Types & Sizes of Aggregate for Concrete ...

Aug 11, 2018 · Coarse aggregates are particulates that are greater than 9.5mm. The usual range employed is between 9.5mm and 37.5mm in diameter. Typically the most common size of aggregate used in construction is 20mm. A larger size, 40mm, is more common in mass concrete. Larger aggregate diameters reduce the quantity of cement and water needed because of its lower Voids.

What is the size of coarse aggregate used in concrete? - Quora

Mar 02, 2018 · When the size of aggregate is greater than 4.75 mm (say 5 mm) it is called coarse aggregate. Graded aggregates are used for better particle packing. The larger the size of aggregate lesser the cement required for same strength up to certain grade of concrete. The constraints for Nominal Maximum Size of Aggregate (NMSA) are follows

Exposed Aggregate Polished Concrete - Glossy Floors Concrete ...

Exposed Aggregate Polished Concrete Floors Are Versatile. Because regular floor polishing is a step-by-step process, commercial business owners and homeowners alike are able to choose the level of shine from satin to a very high gloss floor, whichever meets your maintenance and aesthetic requirements.


Mar 23, 2015 · In large size aggregates surface area to be wetted per unit weight is less, and the water cement ratio is less which increases the strength. On the other hand in smaller size aggregates the surface area is increased which increases w/c ratio and lower strength is achieved. In general for strength upto 200 kg/cm 2 aggregates upto 40 mm may be used and for strength above 300 kg/cm 2 aggregate upto 20 mm may be used. Conditions That Decide Maximum Size of Coarse Aggregate to be Used in Concrete

How to Choose Quality Coarse Aggregate for Concrete Construction?

In order to select good quality coarse aggregates, engineers should consider the following crucial points: The typical coarse aggregate size ranges from 4.75 mm to 18 mm. Gravel or broken stone aggregates with rough and non-glassy texture are the best aggregates because they create a good... ...

Aggregates - Portland Cement Association

Coarse aggregates are any particles greater than 0.19 inch, but generally range between 3/8 and 1.5 inches in diameter. Gravels constitute the majority of coarse aggregate used in concrete with crushed stone making up most of the remainder. Natural gravel and sand are usually dug or dredged from a pit, river, lake, or seabed.

Cement Concrete Flooring | The Construction Civil

The size of panel is basically governed by the location of floor (exposed or indoor), temperature and other climatic conditions, thickness of topping and proportions of ingredients in concrete mix. etc. In general, the area of one such panel should not preferably be more than 2 sq. m.

MoHUPA - IIT Kanpur

Generally, no dimension of a panel shall exceed 4 m in case of floor finish laid monolithically with the base concrete and 2 m in case of floor finish laid separately on a hardened base; length of a panel shall not exceed 3/2 times its breadth.