PDF | On Jun 19, 2020, Nadhim Abdulwahid Hamah Sor and others published The Impact of Artificial Lightweight Aggregate on the Engineering Features of Geopolymer Mortar | Find, read and cite all ...
The high content of MP in the water column on the sand filter media indicated that the MPs in the water were separated by screening as the water passed through the filter medium (Sarkar et al., 2021).
Analyzing Table 9 and Fig. 6, it can be seen that mortar mix design of natural sand (NA) produced, in general, more porous mortar than ratio of artificial sand (AS), in keeping with the results of absorption by immersion and porosity tests. Comparing mortar compositions used in NS1 and AS1, it is possible to notice that the quantity of pores of ...
The effects of cement type, water type (fresh water and sea water) and sand type (river sand and marine sand) on the mechanical properties and surface pH value are the focus of this article. The hydration products and microstructure were discerned based on scanning electron microscopy (SEM), X-ray diffraction (XRD) and pore structure.
Plastering or rendering sand. And even artificial sands; But which sand can be used in mortar? It's possible to use different types of sand when mixing mortar. The type of mortar you make will depend on the job and the finish. The range of sands consist of varying grains and impurities. Therefore, you use different types of sands for ...
To eliminate the effects of grain size and focus on the grain shape effects, a common experimental gradation for river sand and manufactured sand (Msand) is used …
The global consumption of river sand as a fine aggregate in the production of concrete and mortar is very high. Unfortunately, in the last 20 years, the obtainability of river sand is reducing and several countries have problems in supplying. One option to solve the scarcity of river sand is to use sea sand in the construction field. In the current …
Article IV. The medium sand and desert sand were used to produce DSM. Medium sand was taken from the artificial washing sand from the quarrying industry in Ningxia. Desert sand was taken from Mu Us desert. The physical and mechanical properties of medium sand and desert sand were tabulated in Table 2.
The mortar exhibits excellent strength with 50% replacement of natural sand by artificial sand. This paper puts forward the applications of artificial sand as an …
Effects of artificial geopolymer sand as an alternative to natural sand on dynamic mechanical properties of cement mortar | Semantic Scholar. DOI: …
DOI: 10.1016/j.conbuildmat.2023.132181 Corpus ID: 259621693; Effects of artificial geopolymer sand as an alternative to natural sand on dynamic mechanical properties of cement mortar
1. Introduction. Natural crushed rocks or stones are commonly used as coarse aggregates in the production of concrete. Various types of natural rocks (e.g., limestone [], basalt [], and gravel []) have been employed in the concrete industry based on local geological circumstances.However, increasing construction demand and rapid …
Workable life was decreased at small replacements. When manufactured sand in mortar content was 25% and 50%, the water retentivity was significantly …
The conclusions were made for the understanding the effect of artificial concrete in terms of strength and workability over traditional concrete. ... 2013). This sand removed from fields, in addition to depleting the fertile top soil, impairs the quality of concrete/mortar. Artificial sand, which is obtained by crushing the rock, is emerging as ...
The purpose of this study was to evaluate the performance of three filtration treatments for rainbow trout effluent in drip irrigation systems: (1) sand filter (T1), (2) sand filter …
Sand characteristics affect the flow and body mortar needs in its plastic state. As the paste hardens, sand particles become cemented together and contribute to the structural properties of hardened mortar. Sand reduces shrinkage that occurs in setting and drying; thus it helps minimize cracks. Well-graded sand features a well-distributed mix ...
The materials selected for the preparation of the control and the RCSAs-based mortars were CEM I 42.5 R cement with no supplementary cementitious materials, perlite as a mineral addition, natural silica sand and recycled concrete sand aggregates collected from crushed concretes featuring a C25/30 compressive strength class.
Highlights. •. Pioneering valorization of sulfidic mine tailings into cold-bonded granules. •. Minimal heavy metal leaching endorses safe use in second-life …
Alkali-activated artificial aggregates can be a sustainable alternative to cement-based artificial aggregates. However, breaking the complexity of the molarity of the activator solution, fluid–binder ratio, material selection, and their optimum combination is a break-even point. 4. Suitable applications of artificial aggregates need to be ...
An ever-growing population and a continuing trend towards urbanisation mean that around 40 billion tonnes of sand are mined each year to meet the world's increasing demand for construction materials. Because sand from the desert is unsuitable as a building material, it must be mined or dredged from rivers, deltas, and coastal and …
Sand reduces shrinkage that occurs in setting and drying; thus it helps minimize cracks. Well-graded sand features a well-distributed mix of particles of varying …
geopolymer mortar involving the artificial li ghtweight . ... was seen in the m ixture involving 100 % artificial sand. ... the effect of the fine A-LW A amount on the compressive .
In recent years, environmental pollution and resource shortages have increased demand for high-performance green concrete. This study investigated the use of manufactured basalt sand as fine aggregate and mineral admixtures as a partial replacement for cement with a focus on the basic mechanical properties of concrete as …
This paper presents the results of an experimental study that investigated the rheological and mechanical properties of self-compacting mortars incorporating fine dune sand (DS), which has a tight Particle size distribution. Mortar mixtures were prepared with crushed sand (CS) or river sand (RS) in which the fine aggregates were replaced …
Artificial cemented sand test samples were prepared by using ordinary Portland cement (OPC) as the cementing agent. Through uniaxial compression tests and consolidated drained triaxial compression tests, the stress-strain curves of the artificial cemented sand with different cementing agent contents (0.01, 0.03, 0.05 and 0.08) …
First, the research examined the effects of recycled sand content on the characteristics of mortar-density and compressive and flexural strength-by using recycled sand contents of 0, 5, 10, 15, 20 ...
In this paper, the effect of particle characteristics of manufactured sand on mortar flow properties was investigated based on DIP technique and discrete element method. The fluidity test model established based on DEM simulated the mortar fluidity test process with different particle size ratios and different aggregate shape characteristics.
Thus, the mortar based on limestone crushed sand (LS) has a low loss of rheological properties compared with a mortar based on siliceous crushed sand (SS). Yet, for 0 % of LCSD, it was found that ...
Section snippets Materials. Conventional Portland cement (OPC, type 1) and standard sand were used throughout this study. Waste artificial marble fine aggregate was acquired from the production process of acrylic artificial marble, and it was crushed to get the fine aggregate.
Geopolymer sand was used instead of natural sand to prepare cement mortar. • Dynamic properties of cement mortar with different replacement rates were studied. • Dynamic strength of geopolymer sand-replaced cement mortar reaches …
Specimens are cast by adding fly ash at varying percentages like 10%, 15%, 30% and 40% by weight of cement and artificial sand. The compressive strength is evaluated.
Fig. 5 shows how the compressive strength of mortar cubes changed at 28 and 180 days when different amounts of NP replaced sand and SF replaced cement. Replacing sand with 20% NP enhanced the compressive strength (Fig. 5).The physical properties of used NP in its coarse state (rough surface texture) enhances bonding of …
The results show that polypropylene fiber can significantly improve the physical and mechanical properties of aeolian sand dry mortar. Polypropylene fiber content is within 1.3Kg/m 3, and with the increase of fiber content, the effect of aeolian sand mortar is obvious; when the content exceeds 1.3Kg/m 3, the shrinkage and mechanical …
Effects of Manufactured Sand Characteristics on Water Demand of Mortar and Concrete Mixtures. Manufactured sands are produced by crushing rock deposits to produce a fine aggregate that is generally more angular and has a rougher surface texture than naturally weathered sand particles.….
There is a need to identify suitable alternative material from industrial waste in place of river sand. The utilization of quarry dust which is a waste material has been accepted as building material in many countries for the past three decades. The effect of w/c ratio on hardened properties of ordinary concrete with partial replacement of natural sand by manufactured …
Sand dunes are one of the most common soil types all over the world, particularly in North Africa and the Arabian Peninsula. These dunes, with their regional extensions, are considered the main natural resource for fine aggregates being used in construction purposes. To use dune sands as a road construction material, suitable …
Two different filter media were tested. The first one was CA-07MS silica sand (Sibelco Minerales, Bilbao, Spain) with an effective diameter (D 10, size opening which passes 10% by dry weight of a representative sample of the filter material) of 0.48 mm, a uniformity coefficient (ratio of the size opening which passes 60% of the sand …
Download Citation | On Aug 1, 2023, J.W. Gao and others published Effects of artificial geopolymer sand as an alternative to natural sand on dynamic mechanical properties of cement mortar | Find ...
Effects of artificial geopolymer sand as an alternative to natural sand on dynamic mechanical properties of cement mortar - ScienceDirect. Abstract. Cited by (1) …