PEW Jaw Crusher

PEW series Jaw crusher features big crushing ratio, reliable operation, easy maintenance…


PFW Impact Crusher

Base on the plentiful experience of producing and marketing of impact crusher, GM…


VSI Crusher

GM VSI Series vertical shaft impact crusher is designed by reputed German expert…


Raymond Mill

The Raymond grinding mill was ever popular in mining, building materials, chemical…


Ball Mill

Ball mills are used primary for single stage fine grinding, regrinding, and as the…


LM Vertical Grinding Mills

According to customers’ requirements, GM success in absorbing foreign experience…


Mobile Cone Crusher

The Mobile Cone Crusher (plants) has excellent mobility, it can move to anywhere…


Mobile Impact Crusher

Putting crushing and screening process on wheels really boosts process efficiency.…


Mobile Jaw Crusher

Portable mobile jaw crusher is developed according to novel series stone crushing…

why is it important to have gravel under a concrete slab

24-3-2010Best Answer ok all of the previous answers are partially correct in different ways Conventional wisdom for a residential garage use is 6 of a mix of number 5 and number 7 limestone the soil should be compacted prior to placement of the limestone gravel Sand is Get Price

Guidelines for Durable Driveways

Guidelines for Durable Driveways Carports Patios Walks Garage Floors • The Right Concrete Mix • Placing and Finishing • Joints Correctly Spaced • Curing for Durability Concrete durability is the ability to resist weathering action chemical attack abrasion or any other process of deterioration Get Price


Tips for Pouring a Concrete Slab Know what to expect prepare for the worst and the rest is easy BY MIKE GUERTIN PREP FOR THE POUR WITH SOLID FORMS WIRE MESH GRADE STAKES AND SPLASH PROTECTION Keep the slab separate When a slab is poured against an existing foundation use a bond break to keep the new slab independent of the foundation Get Price

Gravel Size Under Concrete Slab– Rock Crusher Mill

Gravel Size Under Concrete Slab XSM is a leading global manufacturer of crushing and milling equipment (Gravel Size Under Concrete Slab) XSM also supply individual (Gravel Size Under Concrete Slab) crushers and mills as well as spare parts of them Get Price

How To Pour A Concrete Slab For A Shed

This is how to pour a concrete slab for a shed taken from my recent slab pour - with Once the form-work is down and secured its time to put the gravel in and the easiest way to do this is 'bar chairs' You could also get some old bricks or something else concrete and put them under the slab but the bar chairs are quite Get Price

DIY Concrete Guide Controlling Cracks

How to Do Concrete – Guide to Controlling Cracks – Slab on Grade Concrete – Do it Yourself Guide to Controlling Cracks (DIY) How to Do Concrete – Guide to Calculating Concrete – Specifying Concrete – Ordering Concrete – Prior Concrete Pour Check List – Advantages of Pumping Concrete – Do it Yourself Concrete Get Price


How to stop concrete slab floor from absorbing water Ask Question Asked 6 years ago If so should I just put in some gravel fore go the french drain part? Would the paint/sealant on the slab cause problems in itself? If now what would be a good What drainage should I install under concrete slab in garage? 1 Get Price

Concrete Slab

A concrete slab is poured right on the ground It doesn't have a foundation or any concrete walls under it or around it In Maine we install a lot of slabs-on-grade for houses and garages A slab foundation is usually less expensive to install than a full concrete wall foundation with a concrete floor Get Price

Foundations Flashcards

Many slab-on-grade systems allow the concrete footing foundation and subfloor to be poured at the same time 2 Crawl Spaces Found in all climates but predominately in temperate regions In this system the insulated wooden ground floor is supported above grade on a foundation wall made of concrete or concrete Get Price

Things You Should Know about Cracks in Slab Foundation

Concrete slabs are essential to the structural stability and design of modern buildings A single thick concrete slab is often used as the foundation for large buildings – called "Slab-on-Grade Foundation" – resting on compacted subsoil and ensuring the building stays level Get Price

Insulating Beneath the Basement Slab

Evenly spread the base gravel under the basement slab keeping it 1 inch lower than the conventional method Place a 1-inch layer of 4'x8' extruded polystyrene foam board over the gravel covering the entire floor area Tape the joints between the boards with builder's tape you want to create a Get Price

What is grade slab and what is the difference between

Grade Slab Flat concrete structure built on top of the soil at ground level and does not require support from underground footers or foundation walls This grade slab acts as the foundation for a home or building and provides a stable base for w Get Price

3 Reasons Why It's Important To Use Crushed Stone Under

Here are 3 reasons why a layer of crushed stone is important to the life of your concrete A Level Surface Adding crushed stone under your concrete slab will provide a level surface for your foundation Simply pouring concrete onto the ground will expose it to elemental erosion that will cause cracking and sinking Get Price

Basement Waterproofing Slab on Grade Foundations

Short foundation walls (called "frost walls" or "stem walls") are poured on these footings up to grade level The soil in the middle is graded a layer of gravel is poured in and a plastic vapor barrier is laid down The concrete slab which forms the first floor of the house is then poured and finished Get Price

what size gravel is used under a concrete slab

what size gravel is used under a concrete slab why sand under concrete I m preparing to pour a finish concrete foor slab on grade The structural plans call for 4 compacted gravel base Gravel The Type of Gravel to Use for Pavers What Kind of Insulation Should Be Put Under a Concrete Slab in a Garage Gravel Size for a Driveway Get Price

Best fill material 4 burying pvc under concrete

I'd like to know what is the best material to backfill around the pvc pipes before I pour the concrete Some say just sand would be fine I've heard a 50/50 sand/gravel mix also works well There is a clay like material already existing under the floor that I think would also work but I'm not sure how to re-compact it around the pipes Get Price

Specification Limits on Slab

13-5-2013Home Concrete Concrete Equipment Products Specification Limits on Slab-on-Grade Placement Size Specification Limits on Slab -on-Grade Slabs not strongly restrained at their perimeters by bond of floor or slab concrete to foundation walls or other construction or by tying-in Put powerful ForConstructionPros Get Price

How Much Rebar to Put in Concrete

5-10-2019For instance 60 grade rebar which is usually required in earthquake zones can support 60 x 1 000 = 60 000 pounds per square inch Why Use Rebar Rebar must be used because concrete cannot support weight in a single area that would cause the concrete to bend Concrete does not bend it breaks Get Price


13-8-2015Slab thickness is the greatest single factor controlling the load-carry capacity of a slab-on-ground While other factors including concrete compressive strength the thickness and quality of the base material and sub-grade stiffness are important they are minor players as compared to the slab Get Price

How necessary is gravel under concrete?

may not have good support and break Generally rock under concrete is essential Especially under driveways where there is loading from vehicles A thin layer of sand under the concrete allows up to 10 feet between joints The joints control where the concrete cracks If the joints are too far apart then a crack forms before the joint is reached Get Price

gravel under concrete slab? is it absolutely required

Its about 3 75 cu yards of crete or like $400 It will cost $100 for gravel to fill in 2 but my crete is still only a little cheaper and it will be a thinner slab I could put gravel in say 2 and 3 5 of concrete over that or just full 5 5 of crete or I could do lot of gravel and a 2 top coat over that with a bunch of steel and fibers Get Price

Foam and Pouring Slab m4v

4-11-2010Here's a video of insulating foam being put down and then the concrete slab being poured for our new office at 1500 W College Avenue in Appleton WI Here's a video of insulating foam being put down and then the concrete slab being poured for our new office at 1500 W College Find out why Close Foam and Pouring Slab m4v Get Price

compacting gravel under a slab

7-12-2004Re compacting gravel under a slab Tucker With 2 to 3 feet of rock I fail to see why you need either poly or insulation under the slab I think I would opt for the oozing and the thickening effect of the waffle bottom I would think that structurally it turns a 3 1/2 slab into something more like a 6 or 8 slab from a structural standpoint Get Price

Footing Fundamentals

If you dig too deep and replace the soil to recover the grade you are adding back soil that has expanded by as much as 50% Under load it will reconsolidate and cause settling So when you replace material in the trench compact it thoroughly or else use large gravel Get Price

Owner Builder Concrete Slab in the Building Process

CONCRETE Concrete Slab Preparation Concrete slab foundations are the most common type of foundation in the Southwest There are much flatter areas to build on in the Southwest and less need for basements This changes somewhat in the higher elevations Get Price

  • Crusher Machine Jeneral Santos
  • Matrix Thread Grinding Crushers
  • Crusher In Lagos De
  • Rock Crushing Equipment Pictures
  • Mining Machines Lsx Model Sand Washing Machine
  • Heavy Duty Food Mill Machine
  • Naming Of Parts Stone Quarry Stone Quarry Plant Kosovo
  • Good Quality Road Stone Crusher With Iso
  • Construction Detail Of Dc Machih
  • Asbestos Crusher Machine
  • Bolivia Based Machine Make Gypsum Bolivia For Sale Price
  • Iron Ore Mining Crusher Prices In Laos
  • Talcum Pulverizer Supplies
  • Trituradora De Fierro Colima
  • Contoh Proposal Produksi Jaw Crusher Di Paniai
  • Mobile Crushers On Hire In Philippines
  • Gipsum Mines In Spain
  • Articulos Sobre Trituracion Y Molienda
  • Crusher For Sale Ukraine Nigeria
  • Machinery Pick Up Sand From The River