DOI: 10.1063/5.0123815 Corpus ID: 257321716; The effect of pit sand properties on the water permeability of concrete @article{Pasalli2023TheEO, title={The effect of pit sand properties on the water permeability of concrete}, author={Daud Andang Pasalli and Sri Tudjono and Ilham Nurhuda}, journal={THE 6TH INTERNATIONAL CONFERENCE ON …
To achieve the unloading effect, the initial normal stress is set as 150 kPa, the sand is consolidated for more than 1 h utill the sand's vertical deformation stabilizes, the normal stress is discharged to the specified normal stress during shear stress, i.e., 120, 90 or 60 kPa at the rate of 0.5 kPa/s, and then the sand is consolidated for ...
EFFECTS OF DESERT SAND SUBSTITUTION ON CONCRETE PROPERTIES USING DESERT SAND-DOPED QUARTZ SAND AS THE FINE …
3 Effect of Mixing Water Quality on Concrete Properties High demand for and continuous mismanagement of water resources has exacerbated widespread hazards of water stress.
Due to the large demands of infrastructure around the world, such as high-speed railways, highway bridges, and skyscrapers, pile foundations have become one of the most widely used geotechnical …
Seawater sea-sand concrete (SWSSC) could achieve comparable workability, mechanical strength, and durability as ordinary concrete (freshwater river-sand concrete) [[1], [2], [3]]. However, chloride ions in the ocean are prone to attack the steel, posing safety risks to steel-reinforced concrete (RC) structures.
2.3. Specimen preparation. The mixing and preparation of FRMSC was carried out in accordance with the standards GB/T14902-2012 [42] and JG/T472-2015 [43].To ensure a homogeneous structure and alleviate fiber agglomeration, all concrete mixtures were blended using a mixer according to following procedures: (1) Dry …
The main objective of this research is to study the effect of the chemical composition and grain size of pit sand on the permeability of concrete.
1. INTRODUCTION . portant component in every construction project. Because it normally comes in a mixture form, before used in constructions it required to be removed from …
In the three-year-old filters, the most common mode of failure was cracking of the concrete body, leading to water and sand leaking out of the filters. The cracking was likely a function of poor quality control during production (Vanderzwaag et al. 2009). In the eight-year-old filters, the modes of failure were cracks in the body and ...
1. Introduction. Recently, the scarcity, long-distance transportation, and high cost of fresh water and river sand, particularly in the construction of offshore engineering, have necessitated the use of seawater and sea sand concrete (SSC) as a potential substitute for normal concrete [1, 2].However, seawater and sea sand contain …
1. Introduction. Due to the scarcity of coarse aggregates and the availability of large quantities of sand in many regions around the world, interest has grown in the development of sand concrete as an alternative to ordinary concrete in civil engineering [1].Sand concrete is a new type of concrete that has strength comparable to …
the traditional slow sand filter, which has been used for community water treatment for hundreds of years. The BSF is smaller ... Water for concrete mix and to wash filter sand and gravel ... Baumgartner, J. (2006). The Effect of User Behavior on the Performance of Two Water Filtration Systems. Masters of Science thesis.
In addition, temperature, water content and surface roughness affect the soil–concrete interface shear strength. 16 Vasilescu 10 presented that the interface friction angle of Fontainebleau sand–concrete under monotonic temperature is 25.9°, 26.8°, and 25.4° for 8 °C, 13 °C, and 18 °C, respectively, while after 8-18 °C cyclic thermal ...
DOI: 10.1016/J.CONBUILDMAT.2014.07.070 Corpus ID: 135823788; Effects of foundry sand as a fine aggregate in concrete production @article{Prabhu2014EffectsOF, title={Effects of foundry sand as a fine aggregate in concrete production}, author={Ganapathy Ganesh Prabhu and Jung-hwan Hyun and …
Different sand types of fine aggregate, such as natural sand, crushed stone sand, and crushed gravel sand, can have a considerable effect on the properties of the concrete. For instance, natural sand has a higher water absorption rate than crushed stone sand and crushed gravel sand, which can influence the strength and durability of the …
content also has adverse effect of the strength of concrete due to poor adhesion. Researchers have therefore develop various models for predicting the effect of sand fines and W/C on the strength of concrete. However, there is a gap in literature for the combined effect of sand fines and water/cement ratio's effect on the properties of concrete.
The sea sand and coral used in this study were obtained from the South China Sea. Coral aggregates are massive and similar in shape to ordinary aggregates (Fig. 1) and do not significantly affect the fluidity of concrete.The particle gradation of sea sand and coral aggregates is shown in Fig. 2. Table 1 compares the main reason for the lower …
Fig. 1 highlights the increase in research interest on the topic of seawater-mixed concrete and concrete exposed to seawater, in the last few decades. The result of an article search across research databases with the string 'concrete and seawater', includes articles related to concretes exposed to seawater, concretes cured with …
DOI: 10.1016/j.sandf.2020.09.002 Corpus ID: 225153335; Shear behaviour of sand-concrete interface with side post-grouting considering the unloading effect @article{Fei2020ShearBO, title={Shear behaviour of sand-concrete interface with side post-grouting considering the unloading effect}, author={Yi Fei and Noriyuki Yasufuku …
Test and prediction for the shear behavior of the sand–irregular concrete interface under constant and dynamic normal loading. Shixun Zhang Feiyue Liu M. Ying …
2.1. Regulatory Framework for the Investigations. The production of concrete, the design and construction of concrete parts, the determination of properties and application rules in construction are regulated in the standard TCVN 7570:2006 "Aggregates for concrete and mortar—Specifications" [].The main requirements for …
The rationale of the design of mixes were based on a number of objectives: To investigate the effects of (1) SP dosage; (2) IS replacement ratio of fine aggregate; (3) FA or SF replacement of partial cement on the flowability, passing ability, WPD, unit weight, segregation width and compressive strength of heavy-weight concrete.
DOI: 10.13168/cs.2022.0050 Corpus ID: 253546176; EFFECTS OF DESERT SAND SUBSTITUTION ON CONCRETE PROPERTIES USING DESERT SAND-DOPED QUARTZ SAND AS THE FINE AGGREGATE @article{Liao2022EFFECTSOD, title={EFFECTS OF DESERT SAND SUBSTITUTION ON CONCRETE PROPERTIES …
This study investigated the effect of hybrid fibers and their synergic interactions on the mechanical properties of seawater sea-sand (SWSS) concrete. These properties include compressive strength, elastic modulus, splitting tensile strength, compressive stress-strain behavior, and ductility, as well as slump and air content.
The Effect of Aggregate Properties on Concrete Concrete is a mixture of cementious material, aggregate, and water. Aggregate is commonly considered inert filler, which accounts for 60 to 80 percent of the volume and 70 to 85 percent of the weight of concrete. ... (1993) Concrete Structure, Properties, and Materials, Prentice-Hall, Inc ...
A filter cake is often formed between soil and concrete during casting concrete in the ground, such as constructions of diaphragm walls and bored piles. The …
3.1.1. Coarse sand fractions (0.125/2, 2/5 and 5/8 mm) used for the experimental series A of the study. 0.125–8 mm partly natural sand fractions from Årdal (NSBR) sandpit. Årdal 0/8 mm sand (known also as NSBR-sand) is a reference aggregate in most Norwegian concrete laboratories due to its known good performance in fresh …
Pure Effect's sand filter systems provide immediate filtering of water at the job site. Our skid-mounted sand filters are designed to control total suspended solids at flow rates ranging from under 1 GPM to over 2500 GPM. Our sand filter systems include automatic backwashing capabilities. They are ideal for use at construction sites, for ...
DOI: 10.1016/J.CONBUILDMAT.2008.05.005 Corpus ID: 135639943; Effect of used-foundry sand on the mechanical properties of concrete @article{Siddique2009EffectOU, title={Effect of used-foundry sand on the mechanical properties of concrete}, author={Rafat Siddique and Geert De Schutter and Albert Noumow{'e}}, …
1. Introduction. With the development of the marine economy, the construction of islands and reefs has rapidly increased. The increased demand for large quantities of construction materials such as river sand and gravel leads to additional economic costs and energy consumption for marine transport from the mainland …
Autoclaved aerated concrete powder (AACP) is a kind of solid waste, which is characterized by strong water absorption ability and low compressive strength. In this work, it is used as the admixture to enhance the engineering performance of wet filter cakes. The compaction behaviors and shear strength characteristics of the filter cakes …
This paper presents the results of a laboratory investigation into the effect of support fluids on the interface shear strength between sand and cast in situ concrete. A …
The present study aims to investigate the effect of the filter cake on the shear behavior of the sand-concrete pile interface. A series of sand-concrete interface direct …