Effect of Non-Metallic Composite Reinforcement on Load-Bearing Capacity

It is known that non-metallic composite reinforcement was invented in the 60's of the last century, and already then, a large number of scientists began to investigate its physical and mechanical characteristics. Despite its rather old age, this reinforcement has not been sufficiently studied for its work in building structures. Fiberglass composite reinforcement (Arvit) is a high quality construction material with many advantages: 4-5 times less weight compared to metal of the same diameter; it does not rust or oxidize; tensile strength is 2 times higher than metal reinforcement; it does not conduct electricity; high resistance to temperature changes from -70 to +200 ° C; easy to transport. The distinctive features of work of fiberglass composite reinforcement in bending spacer elements are still insufficiently studied, which in design and production practices leads to the non-use of such reinforcement in the construction of elements of buildings and structures. The experimental results of the test specimens are presented in the article. In first test specimen, longitudinal working reinforcement was made of two metal rods Ø8 class A400S, in second - two fiberglass rods Ø8 AKS 600.

Spatial distribution characteristics of loose bodies in Huaishu River levee and their influence on seepage field

At present, many levees contain a large number of loose bodies as a result of poor-quality construction, biological damage, and other factors. In this context, loose bodies refer to soil with a relative density less than a specified value. Taking the Huaishu River levee in China as an example, this paper studies the distribution characteristics of loose bodies in the levee using statistical methods. First, ground-penetrating radar and other geophysical exploration methods are used to investigate loose bodies in the levee. The frequency distribution and Shapiro–Wilk method are then employed to study the distribution characteristics of the area and depth of loose bodies. The influence of loose bodies on the seepage field of the levee is then examined considering the spatial distribution of the loose bodies. It was found that the areas of loose bodies in the western and eastern upstream slope obey a logarithmic normal distribution. In the shallow layer (depth between 0–1 m), loose bodies appear relatively frequently, and the frequency initially increases with depth before decreasing. The maximum hydraulic gradient of the levee initially increases and then decreases as the depth of the loose body increases.

UJI KUAT TEKAN DAYA SERAP AIR DAN MASSA JENIS BATU BATA MERAH BERBAHAN TAMBAHAN ABU KULIT DAN JANGGEL JAGUNG DI WULUHAN JEMBER

The increase in Indonesia's development activities increases people's consumption of more quality construction materials and is easy to reach in terms of price. Building materials with good quality can improve the quality of building construction. The increasing need of the community for building materials triggered the development of the brick-making industry. Redbrick is an element of building used in building construction made from clay base material with or without other mixed materials. This research is a type of experimental research. The purpose of this study is to know and analyze the composition of the addition of corn bark ash and ash corn cob appropriately to produce the quality of bricks with high compressive strength, low water absorption, and large density. Additional materials in this study in the form of corn bark ash and ash corn cob. The quality of red bricks is seen from three aspects, namely compressive strength, water absorption, and density. The largest compressive strength was obtained in the addition of ash corn cob by 2.5% by 37.2 Kg/Cm2 and the compressive strength of 49.5 Kg/Cm2 on the addition of corn skin ash by 2.5%. Water absorption measurement of all types of red bricks the results of the study showed all the results of water absorption is not eligible sni. The highest density was obtained from a mixture of 2.5% ash corn cob material of 17.5 gr/Cm3. the best composition to produce bricks with strong compressive value and high density and have low water absorption is 2.5% addition of ash corn cob and the addition of 2.5% corn skin ash. Keywords: Red bricks, strong press, water absorption, density.

Reconstruction place script to awake the general public’s memories

At present, many great Chinese cities are undergoing changes in urban development models, from focusing on speed construction to quality construction. People pay more attention to the improvement of construction quality, from the perspectives of culture, spirit, urban image and function optimization.The creation of place scripts is an important method of modern urban space, and in specific place to design, deepen, and arrange certain procedures and content, so that people can experience different feelings, learn more stories, or cultivates sentiment through various experiences, inherit diverse memories. This paper is based on design projects to analyze research and build place scripts to summarize the expressions that shape memory.

Disastrous Flash Floods Triggered by Moderate to Minor Rainfall Events. Recent Cases in Coastal Benguela (Angola)

The present work focuses on two recent flash floods in coastal Benguela (Angola), both triggered by moderate rainfall but which had disastrous consequences for local populations (namely 71 deaths in 2015 and 17 in 2019). The research involved a regional survey to establish the effects of these floods combined with a geomorphological and socio-economic analysis of the most affected areas to understand the main forcing factors. The two flash floods produced major damage in restricted sectors within very small coastal catchments (<16 km2). The prevalence of fine-grained sedimentary rocks, relatively steep hills, thin soil cover, and vegetation scarcity are natural factors that promote surface runoff. However, socio-economic conditions are most likely the main reasons of flood damage. Namely, rapid population growth with poor planning and making use of low-quality construction materials, the high waste yields that are not properly managed and the absence of flood risk awareness. In the small valleys around the fast-growing cities of coastal Benguela, hazardous flash floods occur recurrently, even after moderate precipitation. Most affected areas are determined by local conditions that compromise drainage at the time of the rainfall event, being very difficult to predict.

The Role of Lingnan Arts and Crafts in the Teaching of Arts and Crafts in Colleges and Universities

With the continuous development and progress of modern society, people’s pursuit of life is also becoming higher and higher, especially for the quality construction in the field of culture and art. With the increasing public concern, the aesthetic requirements of culture and art have become more brand new. As the main training base of modern social art talents, colleges and universities should not only pay attention to the accumulation and application of students' art professional knowledge, but also combine the development situation of modern society in real time to effectively improve the comprehensive cultural literacy ability of students.

LANDSLIDES ON THE ROADS OF THE NORTHERN PART OF THE REPUBLIC OF SRPSKA AS A RESULT OF ELEMENTAL OR ANTHROPOGENIC PROCESSES

The Republic of Srpska, which is an integral part of Bosnia and Herzegovina, was affected by intenseprecipitation during May 2014 and May 2015. The northern part of the Republic of Srpska is locatedbetween the plain area of the Sava River and the mountain massif of the inner Dinarides, while theeastern and western parts are confined to the rivers Drina and Una. Increased precipitation, which in2014 was three times higher than the average, activated large number of landslides, and most of themthreatened the facilities of various purposes. One year later, in the same month, this area was again hitby intense precipitation, less than in the previous year, but more significant by the size of activatedlandslides.The most significant landslides were formed along the roads, and the degree of damage is different,depending on the method of construction and maintenance during exploitation.The slopes on whichroads are built are in general conditionally stable, and for years have kept their stability in naturalconditions. By engineering interventions during the construction of the roads, the natural state ofbalance was disturbed, which was manifested with delay, since the slopes were not well repaired. Theopen terrain profiles on the slopes created favorable conditions for water to flow into the quasihomogeneous and heterogeneous clay sediments, where their stability was disturbed.The roads that were built of good quality as well as slope reparations during construction did not havesignificant damage during intense precipitation, although some of them were built several decadesearlier. During the inventory of landslides on the roads, the effects of elemental and anthropogenicprocesses were analyzed, where 23 of the characteristic landslides were selected. The periods ofconstruction before and after 1990 were separated, that is, the periods of earlier quality construction offacilities from today's modern one.