Modification of a Concrete Mixer for the Sieving of Soils

Leave Comment

Modification of a Concrete Mixer for the Sieving of Soils

We have found that a modified concrete mixer, having a tumbling action to break up large soil sods, provided a suitable means of sieving for our needs. DESIGN AND CONSTRUCTION We modified an electrically driven 0.085 m3 capacity concrete mixer, with a cylindrical drum, containing two internal mixing blades. The mixer was originally designed and made

Get price

Chapter (non-refereed) Latter, P. M.; Harrison, A. F ...

2012-3-26  Benham, D.G. Harrison, A.F. 1980. Modification of a concrete mixer for the sieving of soils. J. appl. Ecol., 17, 203-205. Berg, B., Karenlampi, L Veum, A.K. 1975. Comparisons of decomposition rates measured by means of cellulose. In: Fenno-scandian tundra ecosystems. Part 1. Plants and microorganisms, edited by F.E. Wielgolaski, 261-267.

Get price

Design Procedures for Soil Modification or Stabilization

2012-5-4  2.0 Modification or Stabilization of Soils 2.01 Mechanical Modification or Stabilization This is the process of altering soil properties by changing the gradation through mixing with other soils, densifying the soils using compaction efforts, or undercutting the existing soils and replacing them with granular material.

Get price

Soil texture analyses using a hydrometer: modification of ...

by sieving it through a 53 µm mesh and quantified gravimetrically. Before the hydrometer was used,a blank lecture was performed. This consisted of hydrometer readings at 40 seconds and two hours in the same cylinder with dispersant samples and then water without the soil samples. Sand%=100–(Lecture 40 s x 2 – blank Lecture) x 100/oven-dry wt. [1]

Get price

Properties and Uses of Cement-Modified Soil for Pavements

2018-2-13  Cement modification improves the properties of certain silt-clay soils/aggregates that are unsuitable for use in subgrade construction. The objectives may be to decrease the material’s cohesiveness (plasticity), to decrease the volume change characteristics of expansive clay, to increase the bearing capacity of a weak soil/aggregate, or to

Get price

Preparation of a soil reference material for the ...

2001-10-25  An amount of 0.5 kg of a ground contaminated soil was mixed with 1 kg of the ground non-contaminated soil for 24 h in a concrete mixer. The mixture was increased daily by 0.5 and 1 kg of contaminated and non-contaminated soils, respectively, until the

Get price

Design And Fabrication Of Portable Concrete Mixture

A concrete mixer is comprised primary of motor, a rotating drum, and the materials used to make concrete spin around, mixing together evenly and remaining soft for application and forming. Todays market increasingly requires consistent homogeneity and short mixing times for the industrial production of ready –mix concrete, and more so for precast concrete.

Get price

Soil Dispersion Mixer for Hydrometer Test - Gilson Co.

Soil Dispersion Mixer for hydrometer analysis of soil provides thorough mixing of soil samples using a special mixing blade and a baffled dispersion cup. This product features a powerful 1/3hp motor that has selectable 13,000, 16,000, and 18,000rpm speeds plus a manual pulse switch. The heavy die-cast aluminum housing and durable spindle are built ...

Get price

Sieving methods of sieve analysis - RETSCH

The air jet sieve is a sieving machine for single sieving, i.e. for each sieving process only one sieve is used. The sieve itself is not moved during the process. The material on the sieve is moved by a rotating jet of air: A vacuum cleaner which is connected to the sieving machine generates a vacuum inside the sieving chamber and sucks in fresh air through a rotating slit nozzle.

Get price

FIELD SAMPLING AND TESTING MANUAL TESTING

2019-3-26  dry sieving according to ND T 27. The results of this procedure are included in the calculations for ND T 27. REFERENCED DOCUMENTS ND T 2 and AASHTO T 2, Sampling Aggregates AASHTO T 11, Materials Finer than No. 200 Sieve by Washing ND T 27 and AASHTO T 27, Sieve Analysis of Fine and Coarse Aggregate

Get price

LABORATORY MIXER - GEOTECHNICAL

This Laboratory Mixer is suitable for sample preparation of soils, bituminous concrete and cement mortars. The Laboratory mixer is a planetary beater type, where the flat beaters rotate in the opposite direction to the orbit around the inside of the mixing bowl. The hand lever can raise, lower and lock the bowl at the desired position.

Get price

Preparation of a soil reference material for the ...

2001-10-25  An amount of 0.5 kg of a ground contaminated soil was mixed with 1 kg of the ground non-contaminated soil for 24 h in a concrete mixer.The mixture was increased daily by 0.5 and 1 kg of contaminated and non-contaminated soils, respectively, until the total mass (2.5 kg) of contaminated soils was added.Then, the addition of 1 kg of non-contaminated soil was continued every 2–3 h until 20 kg ...

Get price

Sieve Analysis Equipment Particle Sizing - Gilson Co.

Sieve analysis equipment is used to characterize and classify sand, aggregate, soils, coal, grains, and many types of fine powders. With our large inventory and wide range of ASTM (American Society for Testing and Materials) and ISO (International

Get price

Soil Dispersion Mixer for Hydrometer Test - Gilson Co.

Soil Dispersion Mixer for hydrometer analysis of soil provides thorough mixing of soil samples using a special mixing blade and a baffled dispersion cup. This product features a powerful 1/3hp motor that has selectable 13,000, 16,000, and 18,000rpm speeds

Get price

literature review of a core sand mixer machine

Design, Modification and Analysis of Concrete Mixer Machine. 2015/12/22 A concrete mixer is also commonly called a cement mixer, is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. A typical concrete mixer uses a revolving drum to

Get price

Sustainable Soil Particle Size Characterization Through ...

2013-5-3  A rapid, clean, low-energy, image-based method for determining the grain size distribution of soils by image analysis has been developed. The method is called Sediment Imaging or “Sedimaging”. It develops the grain size distribution for particles in the range between a U.S. Standard Sieve No. 10 (2.0 mm openings) and U.S. Standard Sieve No. 200 (0.075 mm openings) range. The system ...

Get price

Dispersion Cup for Soil Dispersion Mixer - Gilson Co.

Dispersion Cup has 29oz (0.85L) volume capacity and holds soil samples when mixing in the Soil Dispersion Mixer for the preparation of hydrometer tests. Additional cups allow more efficient sample preparation. Includes required baffles to meet ASTM and

Get price

Some factors affecting soil sieve analysis in forensic ...

1987-1-1  Experimental Results The effect of torque on sieving analysis. The soil sample (Sl) was analysed as described above over a period of 2 days without controlling the torque applied to the sieve stack. The results obtained are presented m Tables 2 and 3. The same sou was re-analysed at torque of 2, 4, 6, 8 and 10 Nm using an adjustable torque ...

Get price

Specific measurement of soil microbial ATP -

1983-1-1  Some selected soils were sieved under water through 35/im pore size mesh. The ATP was measured on the soil suspension before and after sieving. The sieving clearly affected the TEA/NRB method considerably less than the TCA method (Table 7), indicating that the latter method, to an important extent, relates to nematodes or other higher biomass.

Get price

FIELD SAMPLING AND TESTING MANUAL TESTING

2019-3-26  dry sieving according to ND T 27. The results of this procedure are included in the calculations for ND T 27. REFERENCED DOCUMENTS ND T 2 and AASHTO T 2, Sampling Aggregates AASHTO T 11, Materials Finer than No. 200 Sieve by Washing ND T 27 and AASHTO T 27, Sieve Analysis of Fine and Coarse Aggregate

Get price

Design Procedures for Soil Modification or Stabilization

2012-5-4  2.0 Modification or Stabilization of Soils 2.01 Mechanical Modification or Stabilization This is the process of altering soil properties by changing the gradation through mixing with other soils, densifying the soils using compaction efforts, or undercutting the existing soils and replacing them with granular material.

Get price

PAVEMENTS Cement-Modified Soil Solves Kentucky

2020-12-22  other hand, in-place cement modification of unstable soils ... Weak materials evidenced during modification Figure 2 – Mixer incorporating portland cement to a depth of 16 inches. ... on conventional concrete, roller-compacted concrete, pervious concrete, cement-modified soil, cement-treated base, and full-depth reclamation. ...

Get price

LABORATORY MIXER - GEOTECHNICAL

This Laboratory Mixer is suitable for sample preparation of soils, bituminous concrete and cement mortars. The Laboratory mixer is a planetary beater type, where the flat beaters rotate in the opposite direction to the orbit around the inside of the mixing bowl. The hand lever can raise, lower and lock the bowl at the desired position.

Get price

Sieve Analysis Equipment Particle Sizing - Gilson Co.

Sieve analysis equipment is used to characterize and classify sand, aggregate, soils, coal, grains, and many types of fine powders. With our large inventory and wide range of ASTM (American Society for Testing and Materials) and ISO (International

Get price

Soil Dispersion Mixer for Hydrometer Test - Gilson Co.

Soil Dispersion Mixer for hydrometer analysis of soil provides thorough mixing of soil samples using a special mixing blade and a baffled dispersion cup.This product features a powerful 1/3hp motor that has selectable 13,000, 16,000, and 18,000rpm speeds plus

Get price

Dispersion Cup for Soil Dispersion Mixer - Gilson Co.

Dispersion Cup has 29oz (0.85L) volume capacity and holds soil samples when mixing in the Soil Dispersion Mixer for the preparation of hydrometer tests. Additional cups allow more efficient sample preparation. Includes required baffles to meet ASTM and

Get price

FIELD SAMPLING AND TESTING MANUAL TESTING

2019-3-26  dry sieving according to ND T 27. The results of this procedure are included in the calculations for ND T 27. REFERENCED DOCUMENTS ND T 2 and AASHTO T 2, Sampling Aggregates AASHTO T 11, Materials Finer than No. 200 Sieve by Washing ND T 27 and AASHTO T 27, Sieve Analysis of Fine and Coarse Aggregate

Get price

Some factors affecting soil sieve analysis in forensic ...

1987-1-1  Experimental Results The effect of torque on sieving analysis. The soil sample (Sl) was analysed as described above over a period of 2 days without controlling the torque applied to the sieve stack. The results obtained are presented m Tables 2 and 3. The same sou was re-analysed at torque of 2, 4, 6, 8 and 10 Nm using an adjustable torque ...

Get price

Specific measurement of soil microbial ATP -

1983-1-1  A direct procedure to extract and determine microbial adenosine 5'-triphosphate (ATP) in soil has been worked out. The soil is homogenized in cold Tris-EDTA-NaN 3 (TEA) buffer. The ATP content of 100 μl of a 1/1000 suspension is directly determined in a photoncountcr after addition of a detergent (NRB ®) extractant and the firefly luciferin-luciferase system.

Get price

Sieving methods of sieve analysis - RETSCH

The appropriate sieving method depends on the degree of fineness of the sample material (fig. 1). Dry sieving is the preferred method for the size range between 40 µm and 125 mm. However, the measurement range is limited by properties of the sample such as a tendency to agglomerate, density or electrostatic charging.

Get price
Contact us

Submit online

Please leave a message below and we will contact you as soon as possible.