Buildings | Free Full-Text | Analysis of the …
On the basis of a literature review, this paper analyses the relationships between water, cement, and bentonite, and the physical and mechanical properties of …
Influence of Bentonite on Mechanical and Durability …
The review of the existing literature indicates that low-calcium bentonite has promising effects on the mechanical and durability properties of conventional concrete [37,42,43,47,48,49,50]. However, the studies on the inclusion of bentonite to improve the performance of geopolymer concrete with NCA and RCA are rather scarce.
Effects of marble powder as a partial replacement of cement …
Firstly, by replacing the cement partially with marble powder, the cost of concrete and the carbon emissions from cement production can be reduced [14][15][16] [17] [18]. Secondly, these waste ...
Adsorption of Eu(III) onto Gaomiaozi bentonite corroded by cement
To study the adsorption capability of corroded GMZ bentonite, constant volume corrosion tests were firstly carried out on compacted samples with a height of 10 mm and a diameter of 50 mm and a dry density of 1.70 Mg/m 3.The experimental set-up was the same as the one used by Ye et al. (2014).Afterwards, the compacted samples …
SEM-EDX study of bentonite alteration under the influence of cement …
Alkaline solutions were originated by the injection of a granitic groundwater solution through cylindrical columns composed of cement mortars faced to bentonite, which was uniaxially compacted with its hygroscopic water content (13%) at nominal dry density of 1.60 g/cm 3.The contact area between the cement mortar and bentonite was …
Preparation of sulphate aluminate cement amended bentonite …
DOI: 10.1016/j.jclepro.2020.120700 Corpus ID: 214403634; Preparation of sulphate aluminate cement amended bentonite and its use in heavy metal adsorption @article{Niu2020PreparationOS, title={Preparation of sulphate aluminate cement amended bentonite and its use in heavy metal adsorption}, author={Mengdie Niu and Guoxin Li …
Cement-Bentonite Grout Backfill for Borehole …
Sodium bentonite powder appears to be the most practicable and efficient to use in this context, but this does not mean that other fillers of different grain sizes and composition could not be used. It is matter of availability and ...
Sorption and hydraulic performance of cement-bentonite …
A traditional cement-bentonite (CB) mixture and two special patented cement-bentonite mixtures were investigated. The CB mixture consists of tap water, an activated sodium bentonite (liquid limit = 520%, plasticity index = 430%; cation exchange capacity, CEC = 75 meq/100 g) and a blast furnace slag cement (average diameter of …
An Experimental Study on the Effect of Plastic Waste Powder …
This experimental study investigated the effect of plastic waste powder on the strength and swelling behavior of tuff and bentonite soils treated by cement since the plastic powder is highly compressible and does not absorb much water. This study aimed to improve the tuff and bentonite soils used in construction by adding plastic waste …
SEBS-Polymer-Modified Slag–Cement–Bentonite for …
The bentonite was a pale-colored fine-grained powder, and more than 75% of the bentonite passed through a 75 µm (No. 200) sieve. The chemical compositions of the cement, GGBS and bentonite are detailed in Table 1 .
(PDF) Bentonite Clay Modified Concrete
According to the results of compressive strength test, using bentonite, kaolin, and other substances (furnace slag and natural resin) at 2/7% ratio by weight of cement, for a 400 kg/m³ cement ...
Water/Cement/Bentonite Ratio Selection Method for …
Depending on the design requirements, there are a range of materials or mixtures that are used for building the barriers: soil–bentonite mixtures, soil–cement–bentonite mixtures, or plastic concrete. Various authors have proposed a wide range of variation for the amount of water, cement, and bentonite.
Developing a sustainable concrete incorporating bentonite …
The presented study investigates the role of bentonite clay (BC) and its synergistic effect with silica fume (SF) as partial replacement of cement on strength, …
Bentonite Uses And Bentonite Powder Mining Process
Bentonite Powder Processing Technological Process. Phrase one: raw material crushing Bentonite blocks will be crushed to 15mm-50mm fineness by crusher. Phrase two: drying and grinding 1.Bentonite material with low moisture will be sent to the storage hopper by the elevator, and than the feeder will send the material to the main mill for grinding.
Micro- and nano- bentonite to improve the strength of …
The nano-bentonite's powder was converted into suspension by a homogenizer mixer, termed as nano-bentonite. ... According to the literature review, most researchers used micro bentonite in soil ...
Partial Substitution of Binding Material by Bentonite Clay …
There are a lot of diverse opinions regarding the use of bentonite clay as a cement substitute, but this knowledge is scattered, and no one can easily judge the suitability of bentonite clay as a binding material. ... Tagnit-Hamou, A. Use of Waste Glass As Powder and Aggregate in Cement-Based Materials. In Proceedings of the SBEIDCO …
Cement-Bentonite Grout Backfill for Borehole Instruments …
Materials and Technology Although this article advocates the use of cement-bentonite grout it is appropriate to review current bentonite backfill and sealing products to illustrate why their use should be limited. To the uninitiated, there is a confusing array of various pellets, chips, granulated and powder-forms of sodium bentoni te commercially …
Reuse of Excavated Clayey Silt in Cement–Fly Ash–Bentonite …
The cement used in this study was ordinary Portland cement (P.O 42.5), supplied by South Cement Company United. The fly ash used was type F in the amount of calcium oxide and level Ⅰ in fineness. The bentonite used was Na-bentonite and the number of swelling ratio was 40. The sand used was river sand between the mesh …
Bentonite toxicology and epidemiology
Abstract. Bentonite, a clay with numerous industrial and consumer applications, is mined and processed in many countries of the world. Its many beneficial uses also create the potential for widespread occupational and consumer exposure. The available studies on toxicity and epidemiology indicate that the principal exposure pathway of concern is ...
Carbonation Results in Diverse Cement Pastes with 10
A review of the literature on the long-term performance of bentonite showed that it has exhibited excellent durability in underground works, where it has …
Experimental investigation of strength parameters of cement …
Previous literature suggested that the substitution of cement with bentonite within the ranges of 20-30% has resulted in higher compressive strengths during later ages (more 28 days) of curing [24 ...
Raw bentonite as supplementary cementitious material – a …
Bentonite is a type of clay that consists mainly of the montmorillonite mineral when it is finely ground and used as a partial replacement of Portland cement. …
Stabilization of iron ore tailings with cement and bentonite: …
Test results reveal that the introduction of cement/bentonite to iron ore tailings requires higher water content for optimum compaction and results in lower dry density. ... Similar trends have been previously reported in the literature for mixtures of bentonite with silty-sands (de ... Fundamentals of X-ray Powder Diffraction. Consoli NC ...
Properties of cement–bentonite mortar developed by …
The study aims to explore the utilization of diferent materials such as bentonite, cement dust, fly ash, lime and polypropylene fibers to produce cement–bentonite mortar with …
Geotechnical properties of materials used in landfill clay …
2.1 Index property. The geotechnical investigation of bentonite and fly ash mix to be used as compacted clay liner is reported by several researchers. It was found that the geotechnical parameters such as plasticity, hydraulic conductivity, swelling, and shrinkage characteristics are reduced while the dry unit weight and strength are …
Experimental Study on Bentonite Clay Powder with
Semantic Scholar extracted view of "Experimental Study on Bentonite Clay Powder with Silica Fume and GGBS as Partial Replacement of Cement in M40 Grade Concrete" by Y. Sumitha et al. ... AI-powered research tool for scientific literature, based at the Allen Institute for AI. Learn More. About
Buildings | Free Full-Text | Analysis of the Water/Cement/Bentonite …
On the basis of a literature review, this paper analyses the relationships between water, cement, and bentonite, and the physical and mechanical properties of the resulting material created in combination with standard sand introduced in the mixture using a ratio of 2:1 with respect to the solid part of the mixture (cement and bentonite).
Mechanical Characterization of Sustainable Concrete …
The concrete of the M30 grade is employed and the cement has been replaced with bentonite by weight of 0%, 10%, 20%, 30%, and 40%. The workability, strength, and durability for acid curing were ...
Effect of Bentonite as Partial Replacement of Cement …
bentonite on cement-based materials for promoting its application as a low-cost viscosity modifying admixture (VMA), binary bentonite–water and ternary cement–bentonite–water systems can be analyzed. The interaction between cement slurry and (Li+, Na+, Ca2+) bentonite was analyzed by chemical analysis, XRD, XRF, …
Carbonation Results in Diverse Cement Pastes with 10
The particle size distribution of the bentonite powder showed that 90% of the particles were <86 µm, whilst most lay within the 10–15 µm range (see the volume density curve). ... A review of the literature on the long-term performance of bentonite showed that it has ... Brown, D.: Monitoring the in-situ performance of a …