Observations and analysis of a 63-year-old reinforced concrete promenade railing exposed to the North Sea

Despite being exposed to the harsh sea-spray environment of the North Sea at Arbroath, Scotland, for over 63 years, many of the reinforced concrete precast beam elements of the 1.5 km long promenade railing are still in very good condition and show little evidence of reinforcement corrosion. In contrast, railing replacements constructed in about 1968 and in 1993 are almost all badly cracked as a result of extensive corrosion of the longitudinal reinforcement. This is despite the newer concrete appearing to be of better quality than the 1943 concrete. Statistics for maximum crack width for each of the three populations, based on measurements made in 2004 and in 2006, are presented. In situ and laboratory measurements show that the 1943 concrete appears to have high permeability but it also shows high electrical resistivity. Chloride penetration measurements show the 1943 and 1993 concretes to have similar chloride profiles and similar chloride concentrations at the reinforcement bars. This is inconsistent with the 1943 beams showing much less reinforcement corrosion than their later replacements and casts doubt on the conventional practice for durability design focusing on reducing concrete permeability through denser concretes or greater cover.

Condition assessment of a 63-year old reinforced concrete structure exposed to the North Sea

This paper describes the condition of a reinforced concrete balustrade consisting of some 1000 individual beam elements all exposed similarly to the hostile marine environment of the North Sea at Arbroath, Scotland since 1943. A comparison is made of the condition of the original construction with the condition of repairs carried out in 1968 and in 1993. It is shown that the 1943 construction shows very little corrosion-induced cracking and little rust staining even though it does not appear to be of high construction quality. Only a very low percentage of the balustrade beams have been replaced. In contrast the beam installed in 1968 and later in 1993 show very considerable and large concrete cracks directly attributable to the corrosion of the longitudinal reinforcement, even though the concrete is of a higher quality and density. A detailed condition survey and statistics of crack sizes are presented in the paper. It is found that the higher corrosion resistance of the 1943 concrete is generally consistent with the concrete electrical resistivity measurements but the degree of corrosion of the reinforcing bars is inconsistent with chloride penetration measurements. The results are compared with the very few observations available in the literature for ageing concrete structures in marine environments. The results cast doubt on the conventional wisdom that chloride content at the reinforcement correlates well with reinforcement corrosion.

Proof of polar ejection from the close-binary core of the planetary nebula Abell 63

We present the first detailed kinematical analysis of the planetary nebula Abell 63, which is known to contain the eclipsing close-binary nucleus UU Sge. Abell 63 provides an important test case in investigating the role of close-binary central stars on the evolution of planetary nebulae. Longslit observations were obtained using the Manchester echelle spectrometer combined with the 2.1-m San Pedro Martir Telescope. The spectra reveal that the central bright rim of Abell 63 has a tube-like structure. A deep image shows collimated lobes extending from the nebula, which are shown to be high-velocity outflows. The kinematic ages of the nebular rim and the extended lobes are calculated to be 8400 +/- 500 and 12900 +/- 2800 yr, respectively, which suggests that the lobes were formed at an earlier stage than the nebular rim. This is consistent with expectations that disc-generated jets form immediately after the common envelope phase. A morphological-kinematical model of the central nebula is presented and the best-fitting model is found to have the same inclination as the orbital plane of the central binary system; this is the first proof that a close-binary system directly affects the shaping of its nebula. A Hubble-type flow is well-established in the morphological-kinematical modelling of the observed line profiles and imagery. Two possible formation models for the elongated lobes of Abell 63 are considered, (i) a low-density, pressure-driven jet excavates a cavity in the remnant asymptotic giant branch (AGB) envelope; (ii) high-density bullets form the lobes in a single ballistic ejection event.

Unesp Ciência, 2015, ano 6, número 63

Revista elaborada pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP

Le Livre des cent ballades [par JEAN DE WERCHIN, PHILIPPE D'ARTOIS, JEAN BOUCICAUT et JEAN DE CRESEQUES], avec les réponses de « REGNAUT DE TRIE » (fol. 60), « CHAMBRILLART » (fol. 61), « monseigneur DE TOURAINE », « LYONET DE COISMES » (fol. 62), « monseigneur DE BERRY » (fol. 63), « JAQUET D'ORLIENS », « TIGNONVILLE » (fol. 64), « JEHAIN DE MALLY » (fol. 65), « YVRY », « BERTHICOURT » (fol. 66), « monseigneur DE LA TRIMOULLE » (fol. 67).

Commençant par : « Une fois pieça chevauchoie Entre Pont de Cé et Angiers... » et finissant par : « Tant seulement doit en son cuer choisir En ciel un Dieu, en terre une deesse » .

« Extrait de l'amortissement general fait par le roy François I, roy de France, des biens des ecclesiastiques non amortis, sceans et scituez ez dioceses de Sens, Chartres, Orleans et Meaux, moyennant le prix et somme pour lesd. quatre diocezes de 63,000 livres tournois, sçavoir pour le dioceze de Sens 20,000, pour celuy de Chartres 24,000, pour celluy d'Orleans 12,000 et pour celluy de Meaux 7,000 », contenant seulement « une Declaration tirée de la chambre des comptes de Paris, du revenu, terres et heritages de l'abbaye du Pont aux Dames, qui fut taxée, pour sa part et cotization, à la somme de 120 livres, etc., led. amortissement fait le 3 septembre 1522 ». (Fol. 4).

Contient : Ce premier extrait est suivi de la « coppie de tiltres et admortissemens de l'eglise et abbaye N. D. du Pont aux Dames, de l'ordre de Cisteaulx, ou diocese de Meauls en Brye, faicte par l'ordonnance du roy, en l'an 1547 »

Resolución N° 63 del 14 de abril de 2010 ¿Cuáles son las causas en las que se basa la Cámara para abstenerse de inscribir un nombramiento? ¿Tienen las cámaras facultades para valorar posibles conflictos de competencia respecto de los administradores nombrados? ¿Puede la cámara evaluar presuntas falsedades contenidas en el documento sujeto a registro?

Servicios registrales

The Weekly Register Vol. III, No. 11, Whole No. 63- November 14,1812

The Weekly Register, also known as Niles Weekly Register, was a weekly periodical edited by Hezekiah Niles (1777-1839) and published in Baltimore Maryland. Volumes of interest were published between 1811 (Vol. 1, No. 1, September 7, 1811) to 1814 (Vol. 5, No. 26, February 26, 1814). These volumes focus primarily on 19th century politics and government in the United States of America. Niles edited and published the Weekly Register until 1836, making it one of the most widely-circulated magazines in the United States. The popularity also made Niles into one of the most influential journalists of his day. Devoted primarily to politics, Niles' Weekly Register is considered an important source for the history of the period. The Register also recorded current economics, technology, science, medicine, geography, archaeology, the weather, and stories of human interest. This issue is part of a bound book titled the Weekly Register 1812-1814. Pages are divided as follows: November 14, 1812- Pages 161-174 January 22, 1814- Pages 337-352 July 30, 1814- Pages 361-376 Look for other issues of the Weekly Register within the website.

Portsmouth Oracle, 3 December 1814 (vol. 25, no. 63) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.