Komplexné informácie o Slovensku, kvalitné služby, ale aj zrenovované parkoviská a moderné zázemie budú vítať turistov pri vstupe na Slovensko. Minister dopravy, výstavby a regionálneho rozvoja Ján Počiatek otvoril prvú z dvoch diaľničných vstupných brán, ktoré od dnes budú vítať zahraničných turistov.
Performance of alkaline solutions on grades of geopolymer concreteeSAT Journals
Abstract Geopolymer is a class of aluminosilicate binding materials synthesized by thermal activation of solid aluminosilicate base materials such as fly ash, metakaolin, GGBS etc., with an alkali metal hydroxide and silicate solution. The geopolymer was activated with sodium hydroxide, sodium silicate and heat. This paper presents the experimental investigation done on the variation of alkaline solution on mechanical properties of geopolymer concrete. The grades chosen for the investigation were M-30, M-40, M-50 and M-60, the mixes were designed for 8 molarity. The alkaline solution used for present study was the combination of sodium silicate and sodium hydroxide solution with the varying ratio of 2, 2.50, 3 and 3.50. The test specimens were 150x150x150 mm cubes and 100x200 mm cylinders heat-cured at 60°C in an oven. The results revealed that the workable flow of geopolymer concrete was in the range of 85 to 145 and was dependent on the ratio by mass of sodium silicate and sodium hydroxide solution. The freshly prepared geopolymer mixes were cohesive and their workability increased with the increase in the ratio of alkaline solution. The strength of geopolymer concrete can be improved by decreasing the water/binding and aggregate/binding ratios. The curing period improves the polymerization process resulting in higher compressive strength. The geopolymer concrete do not have any Portland cement, they can be considered as less energy interactive. It utilizes the industrial wastes such as fly ash for producing the binding system in concrete. The obtained compressive strength and split tensile strength were in the range of 20.64 – 60 N/mm2 and 3 – 4.9 N/mm2. The optimum dosage for alkaline solution can be considered as 2.5, because for this ratio the GPC specimens of any grade produced maximum strength in compression and tension. Keywords: geopolymer concrete, fly ash, molarity, sodium silicate, sodium hydroxide
Komplexné informácie o Slovensku, kvalitné služby, ale aj zrenovované parkoviská a moderné zázemie budú vítať turistov pri vstupe na Slovensko. Minister dopravy, výstavby a regionálneho rozvoja Ján Počiatek otvoril prvú z dvoch diaľničných vstupných brán, ktoré od dnes budú vítať zahraničných turistov.
Performance of alkaline solutions on grades of geopolymer concreteeSAT Journals
Abstract Geopolymer is a class of aluminosilicate binding materials synthesized by thermal activation of solid aluminosilicate base materials such as fly ash, metakaolin, GGBS etc., with an alkali metal hydroxide and silicate solution. The geopolymer was activated with sodium hydroxide, sodium silicate and heat. This paper presents the experimental investigation done on the variation of alkaline solution on mechanical properties of geopolymer concrete. The grades chosen for the investigation were M-30, M-40, M-50 and M-60, the mixes were designed for 8 molarity. The alkaline solution used for present study was the combination of sodium silicate and sodium hydroxide solution with the varying ratio of 2, 2.50, 3 and 3.50. The test specimens were 150x150x150 mm cubes and 100x200 mm cylinders heat-cured at 60°C in an oven. The results revealed that the workable flow of geopolymer concrete was in the range of 85 to 145 and was dependent on the ratio by mass of sodium silicate and sodium hydroxide solution. The freshly prepared geopolymer mixes were cohesive and their workability increased with the increase in the ratio of alkaline solution. The strength of geopolymer concrete can be improved by decreasing the water/binding and aggregate/binding ratios. The curing period improves the polymerization process resulting in higher compressive strength. The geopolymer concrete do not have any Portland cement, they can be considered as less energy interactive. It utilizes the industrial wastes such as fly ash for producing the binding system in concrete. The obtained compressive strength and split tensile strength were in the range of 20.64 – 60 N/mm2 and 3 – 4.9 N/mm2. The optimum dosage for alkaline solution can be considered as 2.5, because for this ratio the GPC specimens of any grade produced maximum strength in compression and tension. Keywords: geopolymer concrete, fly ash, molarity, sodium silicate, sodium hydroxide
InnMaster is a management system specifically designed for the Hospitality Trade. Manage your pub or restaurant paperwork and maximise profits with our web-based system.
Informe del secretario del Pleno del Ayuntamiento de Córdoba sobre el Consorcio de Turismo en el que compara su situación con el programa Cuarto Milenio.
Titulo: Academia Vida Ativa
Alunos:Bárbara Peixoto de Souza,Fábio Garcia Moura,fabiola trevisan pires,Leandro Conterato,Marcos Strauss,Pedro,Vinícius Piccini,
Cidade: Porto Alegre
Disciplina: Aquisições
Turma: GP34
Data:10-11-2015
Hora:19:02
Comentarios:
Publico até ápos a correção
InnMaster is a management system specifically designed for the Hospitality Trade. Manage your pub or restaurant paperwork and maximise profits with our web-based system.
Informe del secretario del Pleno del Ayuntamiento de Córdoba sobre el Consorcio de Turismo en el que compara su situación con el programa Cuarto Milenio.
Titulo: Academia Vida Ativa
Alunos:Bárbara Peixoto de Souza,Fábio Garcia Moura,fabiola trevisan pires,Leandro Conterato,Marcos Strauss,Pedro,Vinícius Piccini,
Cidade: Porto Alegre
Disciplina: Aquisições
Turma: GP34
Data:10-11-2015
Hora:19:02
Comentarios:
Publico até ápos a correção
2. Spoločnosť bola založená 29.6.2004, ako právny nástupca 10
ročného živnostenského podnikania v oblasti nákladnej prepra-
vy. Konateľmi spoločnosti sú bratia Peter a Jozef Bartoš. Základ-
né imanie spoločnosti je vo výške 36 514€. V súčasnosti A.S.T.
s.r.o. zamestnáva 8 zamestnancov a vo svojom vozovom parku
disponuje autami značiek Renault, Scania, Iveco, MAN, Peugeot
a Mercedes.
s.r.o.
O nás
3. Je vnútroštátna a medzinárodná preprava tovaru v rámci štátov
EÚ. Tomu je prispôsobené aj poistenie nákladov do výšky 30
000€ pri vnútroštátnych a 50 000€ pri medzinárodných pre-
pravách.
s.r.o.
Naša špecializácia
4. je zložený z vozidiel tak, aby pokryl všetky prípadné požiadavky
klienta - od ľahkého dodávkového vozidla až po 24 tonovú
súpravu.
Mercedes Benz Vito – preprava 7 osôb
Peugot Boxer – 1t – 4,2m
Iveco – 3,5t; 6,5m + príves 2,5t; 6,5m
Iveco – 5,5t; 7,8m + príves 8t; 7,8m
Man – 5,5t; 7,8m
3x Scania + náves – 24t; 13,6m
Renault + náves MULDA – 24t; 13,6m
MAN cisterna na prepravu nebezpečných látok 8t; 8000 l
s.r.o.
Náš vozový park
7. Medzi našich dlhoročných spokojných klientov patria DONG-
WON SK, DONGWON CZ, DS Smith Polska, Alutech Slovakia,
SKS služby, Zakládáni staveb, Základání group
s.r.o.
Referencie
8. Názov spoločnosti: A.S.T., s.r.o.
Sídlo: Ružová 109/12 019 01 Ilava
IČO: 363 367 34
IČ DPH: SK2021840282
Spoločnosť je registrovaná v Obchodnom registri Okresného
súdu v Trenčíne, Oddiel: Sro, Vložka č. 14768/ R-Zbl
Konatelia spoločnosti: Peter Bartoš, Jozef Bartoš
Tel.č.: Peter Bartoš +421908730410
E-mail: ast@stonline.sk
s.r.o.
Kontakt
9. Dovoľte nám, aby sme Vás presvedčili o našej spoľahlivosti.
s.r.o.