Higher Quality Index Research Articles

Determining water quality for drinking and irrigation of surface water in Oguta Lake

The study aimed at determining the drinking and irrigation water quality at Oguta through accessing the physicochemical and chemometric parameters. The sampling was conducted during rainy seasons in June, 2021. A total of 25 water samples were collected from 5 stations along the lake, labelled Sw, Ww, Mw, Nw, Ew and were analyzed using standard methods. The results for the physicochemical screening revealed mean values of Temperature (28.3 oC), Electrical Conductivity (2.3 mg/l), pH (5.7), TDS (75.5mg/l), TSS (5.2mg/l), DO (0.3 mg/l), macro elements were present in the following concentrations, Na (1.2 mg/l), K (1.7 mg/l), Ca (22.7 mg/l), Mg (31.8 mg/l), Cl- (217.3mg/l), NO3- (0.4 mg/l), SO42-(8.3mg/l), PO43- (0.3mg/l). The values were lower than the permissible limits set by agencies like NESREA, FMWR and WHO. The chemometric parameters was estimated to determine the WQI, ESP, SAR and CROSS. The WQI revealed that the water has high quality index, meaning that the water has poor quality and is not suitable for drinking. However, the ESP, SAR and CROSS showed that the water is good for irrigation. Therefore, the lake can be used for irrigation with precaution but extensive treatment will be needed before using for domestic purposes. This also calls for an examination into the anthropogenic causes of pollution.

EFFECTS OF ARTIFICIAL SHADING AND IRRIGATION WITH BRACKISH WATER ON THE INITIAL DEVELOPMENT OF Anadenanthera colubrina (Vell.) Brenan PLANTS

ABSTRACT The use of management strategies or changes in the cultivation environment can reduce the impacts of irrigation water salinity on plant development. Therefore, in this research, physiological responses, initial growth, and plant quality of Anadenanthera colubrina (Vell.) Brenan (Angico Branco) were evaluated under different levels of shading and electrical conductivity of the irrigation water, seeking to identify the most favorable conditions for the development of this species using brackish water. The experiment was carried out in randomized blocks with split plots and four replications. The plots were formed by four environments with different shading levels: 0 (full sun), 30, 50, and 70%, and the subplots, formed by five increasing levels of electrical conductivity of the irrigation water: 0.4, 1.6, 2.8, 4.0, and 5.2 dS.m−1. The following variables were evaluated: substrate electrical conductivity, leaf gas exchange, plant height, biomass production, and Dickson quality index at 40 days in a nursery. The use of artificial shading favored plant development and photosynthesis rate, even when irrigated with moderate and high salinity water. The DQI showed that A. colubrina plants presented higher quality index when produced under intermediate shading (30% and 50%), with yield losses below 20% when irrigated with water with electrical conductivity up to 2.8 dS.m−1.

QUALITY OF THE SECONDARY SCHOOL EDUCATIONAL ENVIRONMENT: A COMPARATIVE STUDY USING THE SACERS RATING SCALE

The quality of education is the main priority in most states’ policy, and Russia is no exception. Russia pays much attention to the accessibility of quality education for all citizens regardless of their place of residence and social status. The quality of education is considered a complex characteristic of educational activity and students’ training. We will consider it within the framework of this article in the context of the assessment and development of the school educational environment. The quality of the educational environment is provided by the following factors: content components relating to the interaction between participants of an educational relationship; organization of the educational process; conditions for professional staff growth and comfortable environment for exceptional children. The study using the SACERS rating scale revealed that schools in different districts of the metropolitan area differ in terms of providing students with equal conditions in their educational environment. The most significant differences were revealed in the following components of the educational environment: the creation of organizational conditions for extracurricular activities and additional education; interior solutions to ensure privacy, the comfort of communication, and motor activity; conditions for the learning and development of students with special educational needs. The study showed that schools with a higher quality index of the educational environment have quite homogeneous educational conditions. They provide relatively equal access to quality education compared to a group of structural units with a lower quality index. The differences in the compared educational organizations specifying the heterogeneity of educational conditions are related to characteristics such as the variability or uniformity in the use of resources, resource availability or its active use, whether it is a systematic or fragmented working process, and the focus on control norms or development.

Биохимические показатели крови быков-производителей при использовании минеральной добавки из жмыха пантов марала

The seed bulls used for artificial insemination should be in good health, have outstanding genetic characteristics, have high sexual activity, and the biological products ob-tained from them should have high quality indices. One of the possible methods of increasing semen production is the introduction of dietary supplements into the diet. The intro-duction of new feed and biologically active supplements into the diet may cause both positive and negative changes in metabolic processes. Monitoring the biochemical status of blood allows detecting not only metabolic disorders in highly productive animals but also a lack of vitamins, mac-ro-and microelements. The research goal was to study the effect of a natural biostimulant (mineral supplement) made from maral antler press-cake on the blood biochemical indices ofBlack Pied seed bulls in the breeding company AO “Plempredpriyatiye Barnaulskoye”. Along with the basic diet, the seed bulls of the trial group received the natural biostimulant (mineral supplement) based on maral antler press-cake; the daily dose -15.0 g per head, for 30 days with 10 days’ interval after each application. The supple-ment was thoroughly mixed with compound feed before feeding. The mineral supplement is of powder form and contains a complex of vitamins, minerals, amino acids and other biologically active substances. The use of a mineral supplement increased the amount of total protein and al-bumin by 7.15% and 18.3%, respectively. The blood glu-cose level in the seed bulls of the trial group was higher by 12% and cholesterol by 17.1% than in the blood of the con-trol group animals. Cholesterol of the seed bulls may be used as a structural material or a precursor in the synthesis of sex steroid hormones. The level of total calcium, alkaline reserve at the end of the experiment increased in the seed bulls when using the mineral supplement made from maral antler press-cake in the diet by 4.8% and 8.1%, respective-ly, as compared to the control group.

An Adaptive Early Fault Detection Model of Induced Draft Fans Based on Multivariate State Estimation Technique

The induced draft (ID) fan is an important piece of auxiliary equipment in coal-fired power plants. Early fault detection of the ID fan can provide predictive maintenance and reduce unscheduled shutdowns, thus improving the reliability of the power generation. In this study, an adaptive model was developed to achieve the early fault detection of ID fans. First, a non-parametric monitoring model was constructed to describe the normal operating characteristics with the multivariate state estimation technique (MSET). A similarity index representing operation status was defined according to the prediction deviations to produce warnings of early faults. To deal with the model accuracy degradation because of variant condition operation of the ID fan, an adaptive strategy was proposed by using the samples with a high data quality index (DQI) to manage the memory matrix and update the MSET model, thereby improving the fault detection results. The proposed method was applied to a 300 MW coal-fired power plant to achieve the early fault detection of an ID fan. In addition, fault detection by using the model without an update was also compared. Results show that the update strategy can greatly improve the MSET model accuracy when predicting normal operations of the ID fan; accordingly, the fault can be detected more than 4 h earlier by using the strategy with the adaptive update when compared to the model without an update.

Effect of filler wire and post weld heat treatment on the mechanical properties of laser beam-welded AA2198

The mechanical behavior of autogenously and non-autogenously laser beam-welded joints of Al-Cu-Li alloy AA2198 and the effect of post weld heat treatment are examined in this contribution. The deformation texture of the base material does not present any significant change in the macrotexture with applying different artificial ageing times. Autogenously and non-autogenously laser beam-welded joints present a decrease in yield stress and ultimate strength in the as-welded condition, approximately 45% and 36–38%, respectively, when compared with AA2198-Τ3 base material. The addition of the AA4047 filler wire increases the Si and Cu content in the grain interior and in the grain boundaries of the fusion zone of the welded joint. Micro-hardness measurements for autogenously laser-welded joints showed a decrease in hardness by 27% for the fusion zone and 42% for the heat-affected zone, when compared with the non-autogenously laser beam-welded joints. Α quality index was exploited to evaluate the tensile mechanical performance of the welded joints. It is observed that the non-autogenously welded joints always show a higher ‘quality’ than the respective autogenously welded joints and the highest quality index in terms of mechanical performance is achieved for the as-welded and the peak-aged conditions, respectively. Regardless of the post weld heat treatment condition, both autogenously and non-autogenously laser-welded specimens fractured in between the equiaxed and fusion zone during tensile loading.

Optimization of Cu content for the development of high-performance T5-treated thixo-cast Al–7Si–0.5Mg–Cu (wt.%) alloy

Cu content has been successfully optimized in a thixo-cast and directly aged (T5-treatment) Al–7Si–0.5Mg (wt.%) alloy. Even after the 0.5% Cu addition, plate-like Al2Cu (θ’) phases, which contribute to high strengths and large plasticity, are precipitated. The formation of a large fraction of Cu-containing brittle phases could be suppressed as well. Then, the Al–7Si–0.5Mg–0.5Cu alloy exhibits high ultimate tensile strength, 0.2% proof stress, and elongation to failure of 296 MPa, 209 MPa, and 8.8%, respectively. This results in a high quality index similar to that of solution-treated and subsequently aged (T6-treated) Al–7Si–Mg alloys. A Cu addition over 1.0% further improves the strengths; however, this leads to poor ductility because of the high fraction of Cu-containing brittle phases.

Cross phases hybrid transformer for managing and improving the energy quality

The presence of harmonic currents in three-phase distribution networks and the stochastic behavior of unbalanced loads with different power factors are undoubtedly responsible for power quality problems. This paper proposes a novel solution named Cross Phases Hybrid Transformer (CPHT) to address those issues. The CPHT incorporates a conventional distribution transformer into an AC/AC power electronic stage referred to as cross phase module. This new hardware configuration allows to achieve continuous three-phase energy supply of distinct loads as well as high energy quality indexes for diverse distribution networks. The proposed solution has been numerically and experimentally validated by means of simulations carried out in Simulink and with a scaled-down laboratory prototype respectively. The validations consider distinct case studies to show the operative advantages of the CPHT with respect to other topologies reported in the literature.

An assessment of ambient air quality using AQI and exceedance factor for Udaipur City, Rajasthan (India)

Air pollution is a severe issue of concern worldwide due to its most significant environmental risk to human health today. All substances that appear in excessive amounts in the environment, such as PM10, NO2, or SO2, may be associated with severe health problems. Anthropogenic sources of these pollutants are mainly responsible for the deterioration of urban air quality. These sources include stationary point sources, mobile sources, waste disposal landfills, open burning, and similar others. Due to these pollutants, people are at increased risk of various serious diseases like breathing problems and heart disease, and the death rate due to these diseases can also increase. Hence, air quality monitoring is essential in urban areas to control and regulate the emission of these pollutants to reduce the health impacts on human beings. Udaipur has been selected for the assessment of air quality with monitored air quality data. Air quality monitoring stations in Udaipur city are operated by the CPCB (Central Pollution Control Board) and RSPCB (Rajasthan State Pollution Control Board). The purpose of this study is to characterize the level of urban air pollution through the measurement of PM10, NO2, or SO2 in Udaipur city, Rajasthan (India). Four sampling locations were selected for Udaipur city to assess the effect of urban air pollution and ambient air quality, and it was monitored for a year from 1st January 2019 to 31st December 2019. The air quality index has been calculated with measured values of PM10, NO2, and SO2. The concentration of PM10 is at a critical level of pollution and primarily responsible for bad air quality and high air quality Index in Udaipur city.

Groundwater hydrochemistry, source identification and pollution assessment in intensive industrial areas, eastern Chinese loess plateau.

Groundwater is essential for regional ecological-economic system and is an important resource of drinking water, especially in the Chinese Loess Plateau (CLP), where is a typical water-limited ecosystem. Groundwater quality deterioration will affect water security and exacerbate the water shortages. Groundwater hydrochemistry, pollution source apportionment, quality and health risks were evaluated based on analysis of major ions and selected trace elements in seasonal samples of the Fen River Basin (FRB) in the eastern CLP. Groundwaters in the FRB were mainly HCO3--Ca2+-Na+ water type with low dissolved solutes in upstream samples, high values in midstream samples and medium values in downstream samples. Solutes in upstream samples were mainly derived from carbonate weathering, while those in midstream and downstream samples came from silicate weathering, evaporites dissolution and anthropogenic sources. Self-organizing map (SOM) showed the hydrochemistry remained unchanged from dry to wet season for most sampling points. The seasonal variations of Ag, Cd, Ni, Pb, and Tl were significant due to anthropogenic input. High NO3- in upstream and downstream samples resulted primarily from sewage discharge, and high SO42- in midstream and downstream samples was from gypsum- and coal-related industries. In addition, anthropogenic input related to coal industries significantly aggravates pollution of As, Ni, Ag, Fe, and Mn. Influenced by evaporites and anthropogenic input, midstream samples had high salinity, total hardness and water quality indices (WQIs) and were unsuitable for irrigation or drinking purposes. Seasonal variation of WQI in the FRB was unsignificant except Jiaokou River sub-basin, where groundwater quality was worse in the wet season than the dry season due to coal mining. Great attention should be paid to the high non-carcinogenic risks of exposure to F, V, Mn, and Cr via dermal absorption, particularly for children. Overall, groundwater quality in the FRB was best in upstream, medium in midstream and worst in midstream based on different index. Groundwater quality is deteriorated by anthropogenic input and the sewage discharge in the FRB should be strictly controlled. Our report provides a reference for groundwater pollution evaluation and source identification in similar areas.

Effects of long-term cropping regimes on SOC stability, soil microbial community and enzyme activities in the Mollisol region of Northeast China

Retaining carbon in cultivated soils is an important mechanism to mitigate climate change and to maintain the sustainability of agricultural ecosystems. Characterization of the soil microbial community was an early means to quantify the increase in soil organic carbon (SOC) content and stability under different cropping systems. However, the effects of different cropping systems on the soil microbial community and enzyme activity and the driving force for increasing the SOC content remain unclear, especially the differences between continuous maize (Zea mays L.) cropping and rotation systems containing legumes. We used a long-term field experiment (30 years) in the Mollisol region of Northeast China. The field experiment was undertaken in split-plot design comprised of four treatments: i) farmland fallow (FALL), ii) continuous soybean cropping (CSC), iii) maize-soybean rotation (MSR), iv) continuous maize cropping (CMC). Fluorometric assays and phospholipid fatty acid analysis (PLFA) were used to determine the biological characteristics of the soil. The SOC chemical composition was characterized using Cross Polarization/Magic Angle Spinning solid-state 13C-nuclear magnetic resonance (13C NMR) spectroscopy. Principal component analysis (PCA), redundancy analysis (RDA) and the partial least squares path model (PLS-PM) were used to explore the coupling mediation of these parameters further. Our results suggested that soil microbes in the four systems were not limited by C and N, but co-limited by P. But compared with the FALL system, the CMC system significantly alleviated the phosphorus limitation of the microorganisms. The CMC system also significantly increased soil nutrient content, especially SOC content (40.8%), available phosphorus (117%), available potassium (30.3%), NO3−-N (148%), and increased microbial community abundance and enzyme activities. Compared with the CMC system, the MSR system held relatively lower Gram-positive: Gram-negative ratio and higher fungi: bacteria ratio, which indicated that the soil microbial community structure is more conducive to improving the SOC stability. Meanwhile, more evidence supporting data that SOC stability was enhanced in MSR soils was provided by the 13C NMR spectra and higher-quality indices (A / AO, AI, HI and LCI). Moreover, strong correlations and RDA analysis confirmed that SOC is the main factor affecting microbial communities and enzyme activities.

Sensitivity Analysis of Bistatic Scattering for Soil Moisture Retrieval

Soil moisture is one of the vital environmental variables in the land–atmosphere cycle. A study of the sensitivity analysis of bistatic scattering coefficients from bare soil at the Ku-band is presented, with the aim of deepening our understanding of the bistatic scattering features and exploring its potential in soil moisture retrieval. First, a well-established advanced integral method was adopted for simulating the bistatic scattering response of bare soil. Secondly, a sensitivity index and a normalized weight quality index were proposed to evaluate the effect of soil moisture on the bistatic scattering coefficient in terms of polarization and angular diversity, and the combinations thereof. The results of single-polarized VV data show that the regions with the maximum sensitivity and high quality index, simultaneously, to soil moisture are in the forward off-specular direction. However, due to the effect of surface roughness and surface autocorrelation function (ACF), the single-polarized data have some limitations for soil moisture inversion. By contrast, the results of two different polarization combinations, as well as a dual-angular simulation of one transmitter and two receivers, show significant estimation benefits. It can be seen that they all provide better ACF suppression capabilities, larger high-sensitivity area, and higher quality indices compared to single-polarized estimation. In addition, dual polarization or dual angular combined measurement provides the possibility of retrieving soil moisture in backward regions. These results are expected to contribute to the design of future bistatic observation systems.

Reasons behind the worldwide diversity in identity and issuance of good governance codes

This study examines the impact of socio-economic factors on the number of good governance codes and issuers of the first codes at the macro-country level. By covering 3200 observations for 160 countries over 1995–2014, this study reports that countries with Anglo-Saxon culture and strong investor protection laws have developed a large number of good governance codes to meet the efficiency needs of legal, political, and cultural values. Moreover, this paper shows that countries with English common law origin alongside civil or religious law have developed a large number of good governance codes. Furthermore, this study indicates that countries with high regulatory quality index have issued a large number of governance codes as a response to the external forces that emerge from coercive associations. However, this study found a positive and significant association between the control of corruption index and the number of governance codes issued by governments to mitigate corruption risk. Additionally, this study reports that countries that issued a large number of good governance codes have gained substantial foreign direct investments inflows and financial aid. This study, therefore, provides meaningful implications for governments and policymakers in countries with weak regulations to issue new governance codes for protecting investors’ rights, thus gain more financial resources.

Extraction of essential oil from methyl cinnamate basil (Ocimum canum Sims) with high yield in a short time using enzyme pretreatment.

This research was carried out to evaluate the effect of viscozyme pre-treatment followed by hydrodistillation (E-HD) on extraction yield, extraction time and quality of methyl cinnamate basil (O. canum) oil. The viscozyme, as a multienzyme acting on cell wall, was used at different concentrations (0.5% and 1%, v/w) for 30, 60 and 90min at 50 °C and pH 5 before hydrodistillation (HD). Oxygenated monoterpenes/monoterpene hydrocarbons ratio was used as a quality index for the obtained essential oil. Enzymatic pretreatment at 1% enzyme concentration for 90min followed by HD increased yield of essential oil by 44.5% with high quality index and decreased HD time from 180 to 30min. Thirty-nine volatile compounds, comprising > 99% of the essential oil were identified and quantified by Gas Chromatography Mass Spectrum (GC-MS). The major components of essential oil were (E)-methyl cinnamate, camphor, trans-β-caryophyllene and 1,8-cineole. Results confirm the effectiveness of the enzyme pretreatment, which enhance extraction of O. canum essential oil in a short time, with a high quality.

Determination of Dry Wear Properties of Zn-30Al-Cu Bearing Alloys in Terms of Their Copper Content and Working Conditions Including Pressure and Sliding Velocity

Five Zn-30Al-Cu alloys were prepared by casting, and their dry wear properties were studied at selected ranges of contact pressure and sliding velocity with a block-on-disk-type tester after investigating their microstructure and mechanical properties. The hardness and the strength of the alloys increased, but their ductility decreased with copper content. The wear volume of the alloys increased with both pressure and sliding velocity, but their friction coefficient showed a slight decrease with pressure. Correlation of the experimental data indicated that the wear volume, friction coefficient and working temperature of the alloys could be determined in terms of their copper content and working conditions including applied pressure and/or sliding velocity. The equations showing the relationships between these properties and the variables are presented in Discussion section. Zn-30Al-3Cu alloy exhibited the second highest quality index and the lowest wear volume among the experimental alloys. Surface and subsurface layers formed in the wear samples of this alloy during the wear tests. Formation of these layers was attributed to the subsurface microstructural changes and adherence of the wear particles to the sample surface. Adhesion was observed to be the dominant wear mechanism for these alloys, but abrasion also played an important role in their wear behavior.

Indirect impact of COVID-19 on environment: A brief study in Indian context

Worldwide spread of COVID-19 in a quite short time has brought a dramatic decrease in industrial activities, road traffic and tourism. Restricted human interaction with nature during this crisis time has appeared as a blessing for nature and environment. Reports from all over the world are indicating that after the outbreak of COVID-19, environmental conditions including air quality and water quality in rivers are improving and wildlife is blooming. India has always been a hub of pollution with huge population, heavy traffics and polluting industries leading to high air quality index (AQI) values in all major cities. But after declaration of lockdown due to COVID-19, quality of air has started to improve and all other environmental parameters such as water quality in rivers have started giving a positive sign towards restoring. This paper provides evidence-based insight into improvement of air quality and environment during pre and post lockdown of this pandemic situation. An attempt has been made to visualize the improvement in the air quality using tools like satellite images of Indian atmosphere, results of onsite real-time monitoring at specific locations (Ghaziabad-highest polluting city of India) and Air quality index (AQI) calculated by central pollution control board of India.

Development of Mathematical Model of High Rise Apartment Buildings Construction Complex Quality Index Assessment

A factor matrix was obtained and using regression equations the connection between the complex quality index and the values of the impact factors was determined. As a regression model, a linear regression quadratic and cubic models were used. It was determined that the most convenient form of noting a mathematical model while performing regression analysis calculations is an equation of a second-order polynomial. The research of the obtained mathematical model is made with the use of the methods of mathematical statistics - dispersion and correlation analyzes. It is proved that the mathematical model adequately describes the research process

Impact of adherence to antiepileptic medications on quality of life of epileptic patients in the Eastern Province of Saudi Arabia: A cross-sectional study

Background: Epilepsy is one of the most common neurological diseases, characterized by recurrent epileptic seizures. Adherence to antiepileptic drugs (AEDs) is vital in establishing seizure control. The adherence, in turn, impacts the quality of life (QoL) in epileptic patients. Methodology: This was a hospital-based cross-sectional study conducted at King Fahd Hospital of the University, Qatif Central Hospital, and Dammam Central Hospital in the Eastern region of Saudi Arabia during the period from January 2018 to April 2018. Epileptic patients from all age groups treated with at least single AED and who had follow-up in hospital for the past 6 months were included in the study. Patients with intellectual disabilities and those who received AEDs for other indications were excluded. The participants were interviewed in Arabic, and validated translated version of questionnaire was completed under the following sections: sociodemographic characteristics, adherence assessment using the General Medication Adherence Scale (GMAS), and QoL in epilepsy patients using EQ-5D-5L. Results: We report 48% of participants with high adherence, 34% with moderate adherence, while 19% exhibited low adherence toward AEDs. Of 80 participants, 25 (31%) reported perfect health status (11,111) and 2 (3%) reported extremely worst health status (55,555). Further, the study revealed a significant (P = 0.045 and 0.035) improvement of QOL in patients with moderate and high adherence compared to patients with low adherence. Conclusion: This study reports high health-related quality index (QoL) in participants with moderate–high adherence. The relationship between adherence and overall HRQoL was directly proportional.

Beef for baby food from bulls and castrates

The research was conducted to compare bulls and castrates in relation to the morphological composition of carcasses, the yield of beef suitable for the production of baby food products, and the quality and safety of raw meat. The research was based on the results of monitoring the safety of the environment, feed, and meat raw materials during the growing and fattening of steers with a meat productivity direction. The pre-slaughter weight and the yield of lean beef of 16-month-old Hereford bull-calves are higher in comparison with castrated animals of the same age, by 6.4 and 1 %, respectively. The muscle tissue of castrates contained 11.5 % of fat, and bulls 9.7 %. The protein content in the longest muscle of bulls was 19.8 %, and in castrates-17.0. The amount of fat beef that is not suitable for baby food is higher in castrate carcasses by 4.7 % compared to bull calves. A high protein quality index of the longest muscle of bulls (6.5) indicates a higher biological value of beef compared to meat from castrates (4.1). In terms of the content of residual amounts of pesticides, toxic elements, and antibiotics, the meat of castrates and bulls of the Hereford breed had no significant differences.

Quality of aggregates for the preparation of asphalt mixtures from 4 processing companies in San José de Cúcuta, Colombia

Four asphalt mix processing companies were visited: Transivic S.A.S, Maquinteligente S.A.S, Copavicol S.A.S and Grupo Colpao S.A.S, companies located in the city of San José de Cúcuta, Colombia. Samples were taken of the stone material marketed by each of the companies for the preparation of asphalt mixtures, especially hot dense mixture-19. The stone aggregates taken from the processing companies were submitted to the analyses described by the “Instituto Nacional de Vías” 2013 for approval in the preparation of asphalt mixtures, regulations that apply in Colombia. The results obtained in the tests carried out with natural stone material were tabulated and analyzed comparatively in order to determine which of them is the most suitable for use in the preparation of the hot dense mixture-19. This provided interesting data on the quality of this material for the preparation of asphalt mixtures in each of the 4 processing companies. With the analysis of the results carried out, it was concluded that only 1 of the 4 material processing companies have high quality indexes. Research conclusion that provides information of interest to civil engineering contractors specialized in the construction of asphalt pavements, who will make important decisions regarding the acquisition of the ideal material for their next projects, thus constructing more durable works, a characteristic that contributes considerably to the economy of the project. In addition, a positive social and environmental impact is generated with the minimization of maintenance and repairs of the work carried out, an activity that leads to a reduction in the industrialized processes that generate polluting waste with respect to the preparation of construction materials for this type of projects.