optimum moisture content of crushed stone

optimum moisture content of crushed stone

Successful G1 Crushed Stone Basecourse Construction - CiteSeerX. G1 Crushed Stone for base course is not the same thing as crusher-run and it is ..... speed to moisten the material to below, but as close as possible to, optimum ... moisture content is just right, the material may be placed as soon as possible. Get Price

Fibar for Outdoor Arenas

Crushed stone base should be checked for optimum moisture content (AASHTO Test T176). On-site water should be added, if necessary, prior to compacting crushed stone base to 95% modified Proctor using 15-ton vibratory roller.

Proper Subgrade Prep| Concrete Construction Magazine

Sep 20, 2007· It is advisable to compact the soil near optimum moisture content to achieve required density levels. This is most likely to occur when the soil is freshly excavated. Maximum compaction is possible before the material has dried out too much or been exposed to …

Are compaction tests of #610 crushed stone reliable ...

Aug 06, 2005· If your stone has become segregated (is not sweet, has "rock pockets") then you will get these low in-place density test results. Make sure that your stone is well mixed and that it actually meets the gradation requirements for #610, that an accurate proctor is being used, and that your material is at or near the optimum moisture content.

Fundamentals of Soil Compaction

moisture content at this maximum is called the optimum moisture content. 3.6 Effects of increasing compactive effort Increased compactive effort enables greater dry unit weights to be achieved which because of the shape of the no air voids line must occur at lower optimum moisture contents.

base course aggregate compaction - Earthwork/grading ...

Jul 12, 2009· 4. 7% OMC (optimum moisture content) seems a bit on the high side for pavement base courses I have used. It would suggest that you are not using crushed stone aggregate and that your base course material is a bit on the sandy side - or, forbid, the base course has significant fines that might be clayey in nature (high PI). 5.

SECTION 02300 - EARTHWORK

optimum moisture content at time of compaction. D. Subbase Material: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a -mm 37.5 (1-1/2-inch) sieve and not more than 12 percent passing a 0.075-mm (No. 200) sieve.

Soil and Aggregate Compaction - Maryland State Highway ...

neutrons. Moisture is determined by the relationship of nuclear count to mass of water per unit volume of soil. The more water that is present, the more hydrogen atoms that will be slowed down and reflected back to the detector tubes to be counted. The moisture content is used in conjunction with the density measurement to determine dry density.

Subgrades & Subbases for Concrete Slabs - The Concrete Network

Subgrades and Subbases for Concrete Slabs ... Recycled crushed concrete is an excellent source for subbase material. The Concrete Producer. ... A soil density-moisture curve defines the optimum moisture content and the maximum density achievable in the field.

crushed stone processing typical moisture content

optimum moisture content of crushed stone (crushed stone, gravel, sand and fines) Aggregate base shall meet the requirements of the 2004 Missouri Standard . Read more limestone moisture content for crushing - Newest Crusher . moisture in crushing stone.

32 11 23 Aggregate Base Course - UDFCD

SECTION 32 11 23 AGGREGATE BASE COURSE . PART 1 GENERAL . 1.01 SECTION INCLUDES . A. The WORK to be performed includes the preparation of the aggregate base course ... A. Aggregates: Aggregates for bases shall be crushed stone, crushed slag, crushed gravel ... (2%) of optimum moisture content and compacted to a minimum of ninety five percent ...

Crushed Edwards Limestone Base | Texas Crushed Stone Co.

Crushed Edward's Limestone Base was inexpensive, easily placed, and resulted in long lasting, smooth riding roads. The only equipment required to place crushed stone base is a motor grader, water truck and compaction roller. By the mid 1950's, this crushed base material was the standard road building base material in the Austin area.

Determine The Maximum Dry Density And The Optimum Moisture ...

This test is done to determine the maximum dry density and the optimum moisture content of soil using heavy compaction as per IS: 2720 (Part 8 ) – 1983.The apparatus used is. i) Cylindrical metal mould – it should be either of 100mm dia. and 1000cc volume or 150mm dia. and 2250cc volume and should conform to IS: 10074 – 1982.

P-208 Aggregate Base Course - michigan.gov

crushed stone, crushed slag, crushed or uncrushed gravel mixed or blended with natural sand, crusher screenings, or other similar, approved materials. The ... shall be at a satisfactory moisture content to obtain maximum density. P-208, Aggregate Base Course Page 3 of 5 The base material shall be stockpiled, either at the

Factors determining the optimum moisture content (OMC) of ...

Based on the tested data, the variations of the maximum dry density, optimum moisture content and average relative breakage, with the median particle diameter and gravel content of the tested ...

crushed stone processing typical moisture content

Crushed Rock Moisture Content - anreximin. crushed stone processing typical moisture content Mining crushers mainly include jaw crusher, cone crusher, impact crusher, mobile crusher for crushing stone, rock . ... and optimum moisture content, following the Road Test by the National Crushed Stone …

TB011P - Minnesota Department of Transportation

paction moisture contents can be increased from slightly below optimum in the lower part of the embankment to above optimum in the top 1 to 3 ft. verifies that expansion is greatly reduced Researchi3-16 for most plastic soils when compacted at moisture contents exceeding AASHTO T99 optimum. Fig. 3 shows the strong influence of compaction moisture

optimum moisture content of crushed stone - transsport.be

optimum moisture content of crushed stone - strefasukcesueu. moisture content in crushed washed sand limits Concrete Aggregates crushed stone is much more angular and requires more paste to coat the, were compacted at the optimum moisture content manufactured . Isture Content Crushed Washed Sand Limits - gijmelbergwijkbe

Item 247 Flexible Base - ftp.dot.state.tx.us

Item 247 Flexible Base 1. DESCRIPTION Construct a foundation course composed of flexible base. 2. MATERIALS ... Crushed stone produced and graded from oversize quarried aggregate that originates from a single, ... optimum moisture content as determined by Tex-113-E. Measure the moisture content of the material in

SECTION 300 - in.gov

The moisture content of the aggregate shall be between 4% and the optimum moisture content prior to placement when the aggregate is delivered to the project. Unless otherwise directed, water shall not be added to the aggregate on the grade. The aggregate shall be spread in uniform lifts with a spreading and leveling device approved by the Engineer.

Soil Compaction Handbook - multiquip.com

dropped, it has too much moisture for compaction. hand test Figure 9 Types of tests Tests to determine optimum moisture content are done in the laboratory. The most common is the Proctor Test, or Modified Proctor Test. A particular soil needs to have an ideal (or optimum) amount of moisture to achieve maximum density. This is

450 Estimate Factors - epg.modot.org

Total Weight of Base Material at Optimum Moisture Content AGGREGATE SURFACE 310-____ Gravel, Crushed Stone and Chat 0.039 Ton/yd2/inch or 0.028 yd3/yd2/inch (Based on 1.40 Tons/yd3 of loose Aggregate) PLANT MIX BITUMINOUS BASE COURSE 401-30.00 Bituminous Pavement Mixture PG64-22 (Base) 2.005 Ton/yd3 Compacted Mixture

CHARACTERISTICS OF SOILS AND THEIR RELATIONSHIP TO ...

CHARACTERISTICS OF SOILS AND THEIR RELATIONSHIP TO COMPACTION OF SOILS ..., VDOT uses processed blends of crushed stone and stone fines ... approximately 50 grams are taken each 5 feet down, especially when the soil is wet, or above optimum moisture content. Finding out the field moisture, or how wet the soil is in place, is very important in ...

COMPACTIBILITY OF CRUSHED STONE BASECOURSE MATERIAL …

The three main conclusions of this study were: (1) the optimum moisture content of g1 crushed stone in the laboratory, is often at or near saturation; (2) a reasonable prediction of the compactibility of crushed stone can be made by an evaluation of the talbot values, the uniformity coefficient and the percentage fines; and (3) the effect on ...

optimum moisture content of crushed stone – Grinding Mill ...

Effects of Gradation, Moisture and Density on ….. crushed stone shall be ... for basement above 3 m Should be stepped form Any Back filling shall be compacted 95% of dry density at the optimum moisture content .....

Maximum Dry Density and Optimum Moisture Content of Soil

Relationship between maximum dry density and optimum moisture content of soil can be obtained from soil compaction curve obtained from Standard Proctor Compaction Test.This relationship helps in determining the optimum water content at which maximum dry …

ITEM 304 AGGREGATE BASE - Pages

The Engineer will develop a moisture-density curve according to Supplement 1015. Use material that is reasonably uniform with moisture. Use a moisture content not less than -2 percent of optimum moisture prior to spreading. Add water to the stockpiles to meet this moisture requirement.

MAXIMIZING THE PERMANCE AND VALUE OF - Vulcan …

MAXIMIZING THE PERFORMANCE AND VALUE OF CRUSHED AGGREGATE BASE Don Powell, PE Vulcan Materials Co. ... stone streets has been found in the village of Ur, Iraq, about 225 miles south of Baghdad. ... and optimum moisture content. The role of moisture is to coat and lubricate the particles

Aggregates for Concrete - University of Memphis

Crushed stone is produced by crushing quarry rock, boul-ders, cobbles, or large-size gravel. Crushed air-cooled blast-furnace slag is also used as fine or coarse aggregate. The aggregates are usually washed and graded at the pit or plant. Some variation in the type, quality, cleanli-ness, grading, moisture content, and other properties is expected.

Effect of Portland Cement Treatment of Crushed Stone Base ...

of Iowa State Highway Commission approved crushed stone for rolled stone bases. The crushed stones were as follows: 1. A weathered, moderately hard limestone of the Pennsylvania System obtained ... Optimum moisture content, < dry soil weight 10 . 9 10. 2 …

ASTM D1557 - 12e1 Standard Test Methods for Laboratory ...

Use of D698, on the other hand, allows compaction using less effort and generally at a higher optimum moisture content. The compacted soil may be less brittle, more flexible, more permeable, and less subject to effects of swelling and shrinking.

304 Aggregate Base - Ohio Department of Transportation

optimum moisture content of crushed stone The materials were tested at or near the maximum dry density, which varied from 1962 kg/m 3 (122.5 pcf) (low fines content crushed stone) to 2300 kg/m 3 (143.6 pcf) (high fines content crushed stone) and the optimum moisture content, which varied from a low of 4.0 percent (low fines content crushed stone) to a high of 9.0 percent (partially ...