Concrete strength is affected by many factors, such as quality of raw materials, water/cement ratio, coarse/fine aggregate …

The water-cement ratios are the main factors affecting strength of concrete at all ages. However, the water-cement ratio strength relationship is different for different types of cement. Generally, as per …

Curing humidity, crew experience and compaction method are the top three factors perceived to affect concrete compressive strength, whereas crew experience, mixing time and compaction method...

This analysis includes a full uncertainty quantification involving 951 uncertain variables and factors that would influence the estimates of climate and health damages of concrete production ...

This fresh property directly influence the response of concrete to imposed loads, durability, and even its cost of production; therefore, its investigation is vital for …

Title: Principles and Factors Influencing High-Strength Concrete Production. Author (s): Leif Berntsson, Satish Chandra, and Tomas Kutti. Publication: …

A study conducted by Concrete International Magazine found that lower water-cement ratios resulted in substantially lower creep strains. For example, using a water-cement ratio of 0.35 resulted in a creep strain of only 150 microstrains, compared to 260 and 380 microstrains for water-cement ratios of 0.45 and 0.55, respectively.

A. The major factors affecting the time of setting are cement composition, water-cementitious material ratio ( w/cm ), temperature, and admixtures. When cement hydrates faster, the time of setting is reduced. Increases in the w/cm result in increased time of setting. Time of setting decreases as the temperature is increased.

Proper compaction of concrete can significantly affect its strength and durability. Compaction affects the strength of concrete in two main ways: Increased density: Compaction helps to increase the density of the concrete by removing air voids and filling in the spaces between the particles of aggregate. This, in turn, helps to increase the ...

jorge santamaria. Structured and unstructured factors affect concrete product. Structured factors are related to concrete production and unstructured factors are related to the construction process.

This fresh property directly influence the response of concrete to imposed loads, durability, and even its cost of production; therefore, its investigation is vital for developing functional and sustainable concrete. Various reports are available in the literature on the factors influencing the workability of RAC. Among the factors highlighted

Compared with natural aggregate concrete, the 28-day compressive strength, splitting strength and cohesive force of recycled aggregate concrete are reduced by 16.1%, 20.1% and 18.1% ...

Request PDF | Influencing Factors in Production and Use of Recycle Concrete Aggregates (RCA) in Thailand | The key to optimal waste management of construction materials is a big challenge in Thailand.

As a result, the effects and relative influence of: (1) concrete workability; (2) reinforcing steel congestion; (3) volume of pours; and (4) height relative to ground level, …

Concrete Properties. Factors affecting the workability of concrete are materials such as water content, cement concrete, sand and aggregate properties such as size, shape, grading, mix design ratio and use of admixtures. Each and every process and materials involved in concrete mixing affects the workability of concrete.

This fresh property directly influence the response of concrete to imposed loads, durability, and even its cost of production; therefore, its investigation is vital for developing functional and sustainable concrete. Various reports are available in the literature on the factors influencing the workability of RAC.

Discusses the principles involved in producing high-strength concrete and presents some results of tests of the mechanical strength of mortars with different components and compositions. Using pure portland cement, silica fume, superplasticizer, normal aggregates, and steel fiber, mortar with compressive strength of about 200 MPa …

DOI: 10.1016/j.conbuildmat.2022.128174 Corpus ID: 249914650; Factors affecting production and properties of self-compacting geopolymer concrete – A review @article{Pradhan2022FactorsAP, title={Factors affecting production and properties of self-compacting geopolymer concrete – A review}, author={Priyanka Pradhan and …

During the experiment, a certain influencing factor is used as a variable and the other two influencing factors are considered as fixed. The parameters of the CC arch experiment (the wall thickness of the steel tube is 10 mm, the core concrete mark is C40, and the lateral pressure coefficient is 1) in the previous section is adopted as fixed.

Given ongoing risk factors, the Portland Cement Association (PCA) has taken a conservative approach to its annual forecast for cement consumption, which Ed Sullivan, senior vice president and ...

Factors Affecting the Workability of Concrete. To achieve the desired workability of concrete, it is important to consider the various factors that can affect it. These include: Water content: The amount of water used in the mix can significantly influence the workability of the concrete. Too much or too little water can affect the consistency ...

Self-compacting geopolymer concrete has many advantages, it is economical, thermally stable, has very low energy consumption, and is durable (as there is no honeycombing) [48], [50]. Certain essentially important factors that influence the formation of SCGC, its strength gain, better durability, and good microstructure …

The failure mechanism of lightweight concrete is quite complicated, and it is essential to understand the influencing factor affecting the concrete strength. ...

Many factors influence the workability of concrete on the production side as well as during the hydration process. Water Content. The amount of water to concrete is the most vital factor affecting the workability of the concrete. When water is added to the concrete mix, it is absorbed on the surface of cement and aggregates in the mixture.

The global concrete production reached up to 10 billion tonnes in 2019 and is expected to rise to 18 billion tonnes by 2050 [14]. The rapid growth in population and the accelerated demand for infrastructures are the main contributors for the dramatic increase in the global concrete production. ... Factors affecting the RHA incorporation in ...

Bulk weight. The above mention characteristic influences workability, finishability, bleeding, and segregation of fresh concrete effects the strength, shrinkage, density, and durability of hardened concrete. 2. …

This paper presents an experimental study evaluating the mechanical properties, particularly the compressive strength, tensile strength, bulk density and elastic modulus, of lightweight concrete with three types of aggregates, i.e., expanded clay, sintered fly ash and expanded shale. The effects of aggregate types, volumetric fly ash …

The parameters that influence the maturity testing using thermocouple are the properties of the cementitious materials, ... The degree of strength formation can depend on many factors which include the curing temperature, age of curing, type of materials used for concrete production, cement types, water-to-cement ratio, etc. It …

Recycling is regarded as an ideal approach to deal with C&D waste. However, the adoption of market for recycled concrete from C&D waste is slow because quality and price are two major factors hindering its wide acceptability. It is observed that the price of recycled concrete is 0–10% higher than that of concrete.

Here, we show worldwide concrete production contributes approximately 7.8% of nitrogen oxide emissions, 4.8% of sulfur oxide emissions, 5.2% of particulate …

The capacity to pour and compact freshly mixed concrete or mortar while maintaining homogeneity depends on the flowability or workability of cement-based composites, which is a critical factor ...

Listed below are the top six factors affecting the strength of concrete. Raw Material Quality. The initial factor that must be addressed when creating concrete is the raw materials that you wish to use to make said concrete. Concrete is formed of four parts; cement, water, coarse aggregate, and sand (or fine aggregate), and the quality of all ...

This paper gives an overview of various factors that influences the performance of Limestone Calcined Clay Cement (LC3) concrete. Among the various research related to ternary cements, this paper discusses the influential factors, based on the strength and durability aspects. The factors such as the type and purity of kaolinite, …

When the sand in production becomes finer, the concrete slump will decrease and the construction become more difficult. On the contrary, when the sand fineness modulus becomes larger, the concrete will have relatively larger slump, worse water retention with the bleeding and … See more

Recycling is regarded as an ideal approach to deal with C&D waste. However, the adoption of market for recycled concrete from C&D waste is slow because quality and price are two major factors hindering its wide acceptability. It is observed that the price of recycled concrete is 0–10% higher than that of concrete.