Effect of Physical Characteristics of Manufactured Sand on …
Aiming at the problems of the poor workability, large loss of flowing time, easy bleeding and segregation of manufactured sand concrete, the mechanisms of such physical properties as the lithology ...
(PDF) Effect of Physical Properties of Manufactured Sand as …
Manufactured sand is defined as the residue, tailing or other non-valuable material after the extraction and the processing of rocks to form fine particles less than …
Prediction of mechanical properties of manufactured sand …
The physical properties of OPC are shown in Table 2. Tuff manufactured sand was used as the fine aggregate, and its physical properties are listed in Table 3. The additives include hydroxypropyl methylcellulose ether (CE) produced by Wacker, DPP, which is a vinyl acetate-ethylene copolymer, and AF, which is an organic silicon P803 produced by ...
Preparation and properties of high-strength lightweight …
2.3. Test method. The bulk density, apparent density and 1-hour water absorption of the prepared lightweight aggregate ceramsites were tested according to Chinese standard GB/T 17431.2–2010 [24].For cylinder compressive strength, a microcomputer controlled universal tester was used. 10–20 mm of ceramsite was placed into a cylinder with an inner diameter of 40 mm …
Particle Characterization of Manufactured Sand and Its …
2.1. Raw Materials. Portland cement was obtained from Cement Company of Guangxi Yufeng. Its characteristics were tested according to GBT1346-2011, and the results are shown in Table 1.Fly ash was obtained from Qingshan Thermal Power Factory, and stone powder was the coproduct of Manufactured Sand A (MSA), which was obtained from dust collectors.
Enhancing Mechanical Properties and Microstructures of …
The production of manufactured sand and stone processing can cause dust pollution due to the generation of a significant amount of stone powder. This dust (mainly granite powder) was collected and incorporated as a cement replacement into mass-manufactured sand concrete in order to enhance the mechanical properties and microstructures. The heat of the …
Research on the green preparation of manufactured sand …
DOI: 10.1016/j.conbuildmat.2023.133794 Corpus ID: 264458177; Research on the green preparation of manufactured sand by tuff produced in Gansu China and its influence on the properties of concrete
Study on mechanical properties and corrosion damage …
Manufactured sand /kg/m 3 Stone /kg/m 3; F0J0C: 165.00: 290.90: ... to the standard GB/T50080–2016 "Standard Test Methods for Performance of Ordinary Concrete Mixtures," the preparation of ordinary river sand concrete and mixed sand concrete is conducted. ... By conducting a thorough comparative analysis of the mechanical properties of ...
PREPARATION OF BRICKS USING SAND AND WASTE …
Since they manufactured two type of brick specimens one with using sand and waste CD'S and another with sand and waste water bottles at only one ratio (1:1.5). And they also tested the prepared brick specimens in order to obtain the physical and mechanical properties. This plastic sand are light weight and have waxy surface.
Preparation and characterization of novel phase-change …
PO 42.5 cement, fine sand, and coarse aggregate are used to prepare phase-change concrete. The mixing ratio of concrete was calculated according to the "Specification for mix proportion design of ordinary concrete" [27]. The mass ratio of PO 42.5 cement, fine sand, coarse aggregate, and water is 19.6 %: 27.6 %: 43.2 %: 9.6 %.
Utilization of solid waste from tunnel excavation as manufactured sand …
On the other hand, although scholars have recognized the importance of pre-treatment operations such as sand washing in the acquisition of manufactured sand, existing literature mainly focuses on the workability behaviors of concrete with washed or unwashed sands, and there is still a lack of in-depth discussion about the mechanical properties ...
Experimental Study on the Strength and Durability of Manufactured Sand
The usage of manufactured sand concrete is widespread in modern engineering, and it is important to study its performance to improve the overall engineering quality. This paper presents an experimental study on the working performance and durability of 12 groups of manufactured sand high-performance concrete (MSHPC) with varying mix ratios, in the …
Effects of the lithologic character of manufactured sand on properties …
Six representative parent rocks of sand, including limestone, quartzite, gneisses, granite, Basalt and Marble were selected to conduct a systematical research on the effects of various lithologies of manufactured sand on the workability, mechanism properties, volume stability and durability of manufactured-sand concrete. The experimental results show that …
Study on Mix Proportion Optimization of Manufactured Sand …
In this study, manufactured sand was used as the fine aggregate to prepare RPC under natural, standard, and compound curing conditions. The mechanical properties of manufactured sand and the design of the steel fiber content were investigated through the evaluation of compressive and split tensile strengths. The conclusions are summarized as ...
Full article: Effect of stone powder and practical …
The stone powder used as a partial sand replacement was obtained by the limestone manufactured sand sieving with the sieve below 75 μm. The physical and mechanical properties of manufactured sand are …
Preparation of C200 green reactive powder concrete and its …
The ultra fine quartz sand with the maximal diameter of 600 μm is totally replaced by the least costly and easily obtained natural river sand with the maximal diameter of 3 mm. A short and fine steel fiber with much lower price ($2500 per ton) than the one used by France is specially designed and manufactured in Guo Mao steel fiber company in ...
Predicting the impermeability and mechanical properties of …
Tuff manufactured sand, SP, and FA were employed as partial raw materials in the preparation of PWM. PCA evaluated the PWM's performance of different mix proportion. …
Particle Characterization of Manufactured Sand …
In this paper, the relationship between the particle shape characteristics of manufactured sand and concrete performance is discussed using a morphological analysis and concrete experiments.
Review on preparation technology and properties of …
With the continuous evolution of additive manufacturing technology, the production of spherical powders has become increasingly vital. Various studies suggest that factors such as the preparation process, powder materials, and sphericity are crucial in determining product performance. This paper provides a comprehensive review of the principles, advantages, and …
Preparation and Properties of Concrete Containing Iron …
Due to the significantly different properties of iron tailings sand compared with natural river sand—such as the higher density, higher content of limestone particles smaller than 75 μm and its ...
Influence law and control mechanism of manufactured sand …
The utilization of tunnel slag processed manufactured sand for high-performance concrete preparation and its application in engineering construction can yield significant economic and social benefits. ... Rheological properties of concrete with manufactured sand: a multi-level prediction. Cement Concr. Compos., 133 (2022), Article 104647. View ...
Fracture characteristics and damage evolution of manufactured sand
The preparation and curing process of the UHPMC specimen is as follows: (1) Solid materials prepared in advance, including Portland cement 52.5 R, silica fume, quartz sand, quartz powder, manufactured sand and stone powder, were dry-mixed for approximately 3 minutes in a mixer to obtain uniform dry mixture.
Synergy of inert granite powder and active mineral …
The mineral admixtures in this research include inert GP and active mineral admixtures (GGBFS, FA and MK). The chemical components of mineral admixtures and P·O 42.5 Portland cement are presented in Table 1.The phase composition and particle size distribution of cement and mineral admixtures are displayed in Fig. 1 and Fig. 2, respectively.GMS …
Prediction of mechanical properties of manufactured sand …
The physical properties of OPC are shown in Table 2. Tuff manufactured sand was used as the fine aggregate, and its physical properties are listed in Table 3. The …
Influence of manufactured sand's characteristics on its …
The difference between the MS and RS can mainly be classified into three characters i.e. shape, stone powder and gradation. Although extensive studies have been reported about the influence of shape and powder content of MS on concrete, while, until now, the influence of gradation characteristics of MS on properties of MS concrete is rarely reported, …
Recycling of waste HDPE and PP plastic in preparation of …
Brick is a vital building material that is widely utilized throughout the world. It is one of the most demanding masonry units. India, along with China and Spain, is the leading brick manufacturing country, with an annual production rate of more than 240 billion bricks (Muheise-Aralia and Pavia, 2021).India produces about a 3.5 million tons of waste plastic every year …
Particle Characterization of Manufactured Sand and Its
In this paper, the relationship between the particle shape characteristics of manufactured sand and concrete performance is discussed using a morphological analysis …
A qualitative approach to describe the viscosity of flowable …
Manufactured sand obtained from the crushing of rock materials is widely used to replace river sand in the preparation of concrete, given the increasing shortage of natural sand resources. The crushed fine aggregate differs a lot with river sand in some basic properties of particle shape, gradation, surface smoothness, and fine content, etc [1 ...
Influence of limestone powder mixing method on properties …
1. Introduction. In recent decades, the utilization of manufactured sand (MS) and stone to prepare concrete has become one of the mainstream directions [1].However, in the process of exploiting natural rocks to produce sand and stone, a large quantity of by-products such as limestone powder (LP) was produced, which was about 4% of the production of MS …
Particle Characterization of Manufactured Sand and Its …
However, due to its irregular shape, rough surface, highly elongated and flaky particle content, poor gradation, and high stone powder (SP, particle size < 0.075 mm) content, manufactured sand is a low-quality succedaneum of natural sand (NS), and its engineering applications are greatly restricted [13,14,15]. Besides, these features of MS make ...
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