The comparison was also made for M sand concrete and traditional concrete. Applying glass powder and other fibers to self-compacting concrete improved, reduces cracks and offers high strength, and improves workability of concrete [10].
Semantic Scholar extracted view of "Research on Rebound Strength Measurement Curve of Modified Carbonation Depth of Machine-Made Sand Concrete" by Junlin Liang et al.
Download Citation | On Jan 1, 2024, Wei Zheng and others published A optimum prediction model of chloride ion diffusion coefficient of machine-made sand concrete based on different machine ...
This article presents 755 groups splitting tensile strength tests data of concrete with manufactured sand (MSC) in different curing age ranged from 1 day to 388 days related to the research article "Experimental study on tensile strength development of concrete with manufactured sand" (Zhao et al., 2017) [1]. These data were used to …
The results show that although the mechanical properties of MSRAC were influenced by sand ratio, they were still controlled by the water to cement ratio. The ratio of axial compressive strength to cubic compressive strength and the elastic modulus of MSRAC basically satisfy the specifications of the current design code for concrete structures.
This paper introduces the experimental results of long-term carbonization of concrete with machine-made sand (MSC), which is part of the studies on durability of this new concrete.
This paper addresses the structural performance of crumb rubberised concrete (CRC) and reinforced CRC slabs under static and low-velocity impact loads. An innovated setup was designed to investigate the impact of behaviour of concrete material based on the drop-weight test.
The optimal concrete mix ratio of machine-made sand was obtained by orthogonal test and its working performance was verified. Grey correlation analysis was applied to compare the factors affecting the mechanical properties of the machine-made sand concrete.
Machine-made sand (MS) has become a hot topic in construction materials due to the depletion and scarcity of natural river sand. Aggregate micro fines…
The experimental results show: The value of machine-made sand has obvious negative effects on concrete performance and admixtures. The rock-powder content and the fineness module have relatively little influence on the working performance of concrete. The negative effect can also be reduced by adjusting the sand ratio, but the amount of ...
The machine-made sand self-compacting concrete is characterized by comprising cement, mineral powder, fly ash, machine-made sand, broken stone, an additive and water, wherein the using amounts of the components of the concrete are as follows according to a single formula: 435kg/m cement 3 87kg/m of mineral powder 3 58kg/m of …
Machine-made sand concrete mixes with equal amount of cement replaced by stone powder were used to study the effect of stone powder replacement of cement on the properties of concrete. After ...
Although the machine-made sand was widely used for concrete in recent years in China, it was short of studies on the relations among the basic mechanical properties of fly-ash concrete with ...
In order to investigate the influence of carbonation treatment on the rebound strength measurement curve of machine-made sand concrete, this study conducted research on the carbonation mechanism sand concrete rebound strength measurement curve through rebound and compressive strength tests using carbonation degree and concrete …
Abstract. Machine-made sand self-compacting concrete is a kind of self compacting concrete with machine-made sand as fine aggregate, which could fill formwork only by its own gravity, without concrete vibration. It is different from ordinary concrete in many aspects, such as fluidity, workability, and configuration method [1].
It discusses the problems existing in the current machine-made sand industry, such as slow overall application, uneven quality and low application of high-grade concrete, and puts forward many measures to promote high-quality machine-made sand.
To ensure the mechanical properties of the machine-made sand concrete, the machine-made sand should be controlled the upper limit of stone powder content in concrete.
For mixing ordinary concrete, machine-made sand with crushing index value below 30% should be used. The production control measures are mainly to select the rock with high compressive strength of parent rock and good rock mass integrity to make sand.
Manufactured sand crushed from stone or gravel, also known as machine-made sand, artificial sand or crushed-stone sand, has been used as a substitute of natural sand in concrete [1], [2], [3]. This is also becoming a global trend to produce concrete by using manufactured sand in the safeguarding of limited natural sand resources [4], [5], …
Despite several studies focusing on producing sustainable concrete with nonconventional materials, there are short-term and long-term lapses in behavior of some of the concretes. This study, with a main focus on durability performance, explores strength and behavior of manufactured sand concrete containing alcofine and zinc oxide in …
Traditional natural river sand is used as a fine aggregate for concrete, but due to the severe environmental situation in recent years, many places have asked for a ban or restriction on the extraction of river sand. This has resulted in an increasing demand for concrete using machine-made sand instead of natural sand. The estimation and …
Experimental study was carried out on the concrete mixed with machine-made sand and recycled coarse aggregate (MSRAC), three strength grades of concrete were designed by changing the water to ...
To enhance the application of machine-made sand (MMS) concrete in engineering, some performances of C30 ordinary concrete and MMS concrete are researched in this paper.
Machine-made sand instead of natural sand has become an inevitable choice for the sustainable development of the concrete industry. Orthogonal experiment and grey correlation analysis were used to investigate the performance of machine-made tuff sand concrete.
The working performance and durability of medium and low strength machine-made sand concrete with different stone powder contents were studied, and the optimal range of stone powder content in ...
By adjusting the proportion of machine-made sand and river sand, the application of using the machine-made sand in C30 and C50 concrete was explored. The results indicate that the proportion of machine-made sand is 40% in C30 concrete, which makes the concrete show the best performance and the maximum compressive strength.
In order to study the effect of polypropylene fibers on the frost resistance of natural sand and machine-made sand concrete, polypropylene fibers (PPF) of different volumes and lengths were mixed into natural sand and machine-made sand concrete, respectively. The freeze-thaw cycle test was carried o …
However, the machine-made sand produced by the general sand field is slightly insufficient at 0.315mm, and at the same time more than 1.18mm, which brings certain difficulties to the preparation of pumped machine-made sand concrete.
This part calculates and analyzes the life cycle of machine-made sand concrete, mainly studies the three aspects of energy consumption, resource consumption, and carbon dioxide emission, and takes the compressive strength as the reference value of concrete performance.
Abstract. With selected appropriate assessment methods and indexes of self-compacting concrete, the properties and its changes of concrete employed the mix proportion of river-sand self-compacting ...
