scholarly journals Application of micro expansion cement in Pavement Base

2020 ◽  
Vol 165 ◽  
pp. 04048
Author(s):  
Li Hongjun

Cement stabilized macadam base is widely used as a road building material in various grades of highways. Based on the law that the base cracking is mainly affected by the shrinkage of cement stabilization materials, this paper introduces the method of adding micro-expanding cement to the base that can effectively reduce the hydration shrinkage coefficient and dryness shrink factor. At the same time, it is pointed out that strict control of the amount of micro-expansion cement and the quality of the construction can also effectively reduce the occurrence of cracks in the base.

2011 ◽  
Vol 13 (2) ◽  
pp. 132-145 ◽  
Author(s):  
Richard Helmholz

Most recent historians have expressed a negative opinion of the quality of legal education at the English universities between 1400 and 1650. The academic study of law at Oxford and Cambridge, they have stated, was easy, antiquated and impractical. The curriculum had not changed from the form it assumed in the thirteenth century, and it did little to prepare students for their careers. This article challenges that opinion by examining the inner nature of the ius commune, the law that was applied in the courts of the church, and also by examining some of the works of practice compiled by English civilians during the period. Those works show that the negative opinion rests in part upon a misunderstanding of the nature of legal practice during earlier centuries. In fact, concentration on the texts of the Roman and canon laws, as old-fashioned as it seems to us, was well suited for the tasks advocates and judges would face once they left the academy. It also provided the stimulus needed for advance in the law of the church itself; their legal education made available to potential advocates and judges skills that would permit a sophisticated application of the ius commune, one better suited to their times. The article provides evidence of how this happened.1


Author(s):  
Egidijus Küris

Western legal tradition gave the birth to the concept of the rule of law. Legal theory and constitutional justice significantly contributed to the crystallisation of its standards and to moving into the direction of the common concept of the rule of law. The European Court of Human Rights uses this concept as an interpretative tool, the extension of which is the quality of the law doctrine, which encompasses concrete requirements for the law under examination in this Court, such as prospectivity of law, its foreseeability, clarity etc. The author of the article, former judge of the Lithuanian Constitutional Court and currently the judge of the European Court of Human Rights, examines how the latter court has gradually intensified (not always consistently) its reliance on the rule of law as a general principle, inherent in all the Articles of the European Convention on Human Rights, to the extent that in some of its judgments it concentrates not anymore on the factual situation of an individual applicant, but, first and foremost, on the examination of the quality of the law. The trend is that, having found the quality of the applicable law to be insufficient, the Court considers that the mere existence of contested legislation amounts to an unjustifiable interference into a respective right and finds a violation of respective provisions of the Convention. This is an indication of the Court’s progressing self-approximation to constitutional courts, which are called to exercise abstract norm-control.La tradición occidental alumbró la noción del Estado de Derecho. La teoría del Derecho y la Justicia Constitucional han contribuido decisivamente a la cristalización de sus estándares, ayudando a conformar un acervo común en torno al mismo. El Tribunal Europeo de Derechos Humanos emplea la noción de Estado de Derecho como una herramienta interpretativa, fundamentalmente centrada en la doctrina de la calidad de la ley, que implica requisitos concretos que exige el Tribunal tales como la claridad, la previsibilidad, y la certeza en la redacción y aplicación de la norma. El autor, en la actualidad Juez del Tribunal Europeo de Derechos Humanos y anterior Magistrado del Tribunal Constitucional de Lituania, examina cómo el primero ha intensificado gradualmente (no siempre de forma igual de consistente) su confianza en el Estado de Derecho como principio general, inherente a todos los preceptos que forman el Convenio Europeo de Derechos Humanos, hasta el punto de que en algunas de sus resoluciones se concentra no tanto en la situación de hecho del demandante individual sino, sobre todo y ante todo, en el examen de esa calidad de la ley. La tendencia del Tribunal es a considerar que, si observa que la ley no goza de calidad suficiente, la mera existencia de la legislación discutida supone una interferencia injustificable dentro del derecho en cuestión y declara la violación del precepto correspondiente del Convenio. Esto implica el acercamiento progresivo del Tribunal Europeo de Derechos Humanos a los Tribunales Constitucionales, quienes tienen encargado el control en abstracto de la norma legal.


2020 ◽  
Vol 6 (3) ◽  
pp. 67-73
Author(s):  
Ekaterina A. Petrova

The article gives the authors interpretation of legal intellection as a special kind of professional thinking. It is underlined that legal intellection is directly connected with lawmaking, since the law is a result of both of these processes. The main directions of its influence on the elements of the lawmaking mechanism are considered. The author interprets lawmaking mechanism as a set of interrelated and interdependent technical and legal elements that support law creation. These elements include the law-makers; law-making methods and techniques; the rules of claw; forms (sources) of law. It is noted that the lawyers belonging to a particular type of legal understanding determines the understanding of lawmaking process. The author analyzes the influence of legal thinking style, determined by legal traditions of various legal families, on application of various forms of law as a result of lawmaking. The examples from Russian and American legal reality are given. The problem of legal intellection level of lawmakers is discussed, because of its influence on the quality of sources of law. It is concluded that legal intellection as a special kind of professional thinking permeates all types of legal activities and, first of all, directly affects the specifics of the lawmaking mechanism, determining the content of its main elements: the law-makers are the holders of legal intellection; methods, techniques of law-making are determined by the stylistic features of legal thinking; the quality of the forms of law created in the lawmaking process directly depends on the legal thinking level of their creators.


2013 ◽  
Vol 10 (1) ◽  
Author(s):  
Rofikatul Karimah

Block made of mud is a building material used in making wall for building that is made fromsand, cement, and fly ash using certain percentage mud in sand. This research aimed to know theeffect of the use of lapindo mud towards the compressive strength, the absorption of block waterwith the mud dosage in sand are: 0%, 10%, 20%, 30%, and 40%. This research was an experimentalresearch; each design was made in size 10x20x40 cm using 5% of fly ash and without fly ash.The result of this research showed that the highest compressive strength was raised in 10%mud in sand with 5% fly ash that was 195 kg/cm2 or increased about 3.44 kg/cm2 within increasingpercentage about 10.651% towards the compressive of block without lapindo mud with 5% of flyash, and was included in class I quality of block. While for the 30% and 40% mud percentage islower compared with normal compressive strength of block. The test result of water absorption oflapindo mud block showed the higher value than 20% for lapindo mud block with 5% fly ash, inframing the mud blocks as the wall, those blocks need to be soaked first because the absorptionvalue of block is higher than 20%. Lapindo mud block without 5% fly ash has bricks water absorptionless than 20%, while in framing those bricks, they don’t need to be soaked because the absorptionof brick if lower than 20%. By using fly ash in mud block, we can get the higher compressivestrength and the lower water absorption.Keyword: Porong Mud, Block, Fly Ash, Compressive Strength, Absorption


Author(s):  
Vecihi S. Zambak ◽  
Budi Mulyono

In history, geometry was founded more as a practical endeavor than a theoretical one. Early developments of the branch portray philosophers' attempts to make sense of their surroundings, including the measurement of distances on earth and in space. Such a link between earth and space sciences and geometry motivated us to develop and implement a multidisciplinary lesson focusing on the conceptual understanding of the law of cosines in the context of astronomy. In our content specific STEAM lesson, the authors aimed to facilitate an understanding of the law of cosines in ninth grade students, and then apply the law in a star map task to find approximate distances between stars. The second part of the lesson also included the use of an instructional technology to support students' work with the star map task. In the conclusion, the authors discuss possible ways to improve the quality of their STEAM education efforts for the given context.


Author(s):  
Geva Benjamin ◽  
Peari Sagi

This chapter examines the basic concept of ‘negotiability’ as the transferability of an instrument embodying monetary claims by its physical delivery—possibly free of adverse claims and contract defences to liability under it. Accordingly, one of the typical features of a negotiable instrument is that it may be divorced from the underlying causes and has to be judged on its own merits, independent from the bargain from which the instrument originated and the underlying contract. The chapter then looks at the principal instruments that, subsequent to their emergence and earlier development, were accorded with the quality of negotiability. These instruments are bills of exchange, promissory notes, and cheques. The chapter also discusses the rules governing liability under and transfer of such instruments as a crystallization of the general rules of contract and tangible property, and describes their contemporary uses. Moreover, it outlines early national codification, major difference among the global systems, and major international efforts to unify and substantively harmonize this area of law.


Geofluids ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
J. Wang ◽  
B. Hu ◽  
J. Chang ◽  
W. P. Wang ◽  
H. L. Li

The implementation of green mining (GM) can improve the quality of economic growth. Based on uncertainty measurement theory (UMT), we aim to develop a reasonable method of green mining (GM) evaluation for building material (BM) mines via comparative analysis. At first, establish UMT evaluating model for GM. The linear uncertainty (LU) measurement function was employed to solve single indicator measure values. Then, based on the entropy weight method (EWM), the analytic hierarchy process (AHP) and a method that couples AHP and EWM (EWM-AHP), and the weights of the evaluating indicator were determined. At last, based on UMT, a total of 6 coupled methods are developed to evaluate the GM grades. The GM grades of two building material mines in China were evaluated by applying the 6 methods. Future suggestions were given to the enterprises to improve the GM grades. According to the actual situations of GM in the two building material (BM) mines, it can be speculated that UMT-EWM-AHP-CDRT is the most reasonable method. The reasonable method can not only evaluate the GM grades for BM but also provide guidance to the development of GM for BM.


2020 ◽  
Vol 22 (1) ◽  
pp. 33-60
Author(s):  
Danae Azaria

Abstract Although it is widely accepted that the pronouncements of expert treaty bodies are not binding, this does not mean that they are deprived of any effect in law. This study focuses on their legal effects vis-à-vis the interpretation of treaties, and explores how the International Court of Justice and the International Law Commission have dealt with the pronouncements of expert treaty bodies in relation to the interpretation of treaties. The tale about the Court’s and the Commission’s approaches in this respect demonstrates the profound belief of both the Court and the Commission that international law is a legal system, which calls for reliance on the pronouncements of expert treaty bodies as integral actors within the legal system with some ‘authority’ concerning the determination of the law (within their mandate). This does not mean that the Court and the Commission support a ‘blind reliance’ on such pronouncements; rather the quality of each pronouncement is a criterion for relying on it. The reasoning of the Court and (and implicitly of) the Commission also shows that they consider that international law as a legal system, which necessitates ‘legal consistency’. This in turn suggests that the reliance on pronouncements of expert treaty bodies, which are mandated to supervise the application (and interpretation) of particular treaties, may constitute an exercise of ‘systemic integration’ which exceeds the confines of the rule set forth in Article 31(3)(c) of the Vienna Convention on the Law of Treaties.


2011 ◽  
Vol 78 (4) ◽  
pp. 256-259 ◽  
Author(s):  
S. Thomas ◽  
J. Cheesbrough ◽  
S. Plumb ◽  
L. Bolton ◽  
P. Wilkinson ◽  
...  

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