ChemInform Abstract: Utilization of Industrial Waste Materials. Part 4. Synthesis of New, Chiral β-Amino Alcohols and Their Applications in the Catalytic Enantioselective Addition of Diethylzinc to Benzaldehyde.

ChemInform ◽  
2010 ◽  
Vol 25 (41) ◽  
pp. no-no
Author(s):  
K. STINGL ◽  
J. MARTENS
Keyword(s):  
Industrial Waste ◽  
Amino Alcohols ◽  
Waste Materials ◽  
Enantioselective Addition

A Convenient Synthesis of Piperidine-Based β-Amino Alcohols from L-Phe and Highly Enantioselective Addition of Diethyl Zinc to Aldehydes.

ChemInform ◽  
2003 ◽  
Vol 34 (28) ◽  
Author(s):  
Chao-shan Da ◽  
Zhi-jian Han ◽  
Ming Ni ◽  
Fan Yang ◽  
Da-xue Liu ◽  
...  
Keyword(s):  
Amino Alcohols ◽  
Diethyl Zinc ◽  
Convenient Synthesis ◽  
Enantioselective Addition

scholarly journals Development of UHPC Mixtures Utilizing Natural and Industrial Waste Materials as Partial Replacements of Silica Fume and Sand

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Shamsad Ahmad ◽  
Ibrahim Hakeem ◽  
Mohammed Maslehuddin
Keyword(s):  
Silica Fume ◽  
Industrial Waste ◽  
Steel Slag ◽  
Limestone Powder ◽  
Waste Materials ◽  
Cement Kiln ◽  
Test Results ◽  
Strength Criteria ◽  
Natural Pozzolana ◽  
Kiln Dust

In the exploratory study presented in this paper, an attempt was made to develop different mixtures of ultrahigh performance concrete (UHPC) using various locally available natural and industrial waste materials as partial replacements of silica fume and sand. Materials such as natural pozzolana (NP), fly ash (FA), limestone powder (LSP), cement kiln dust (CKD), and pulverized steel slag (PSS), all of which are abundantly available in Saudi Arabia at little or no cost, were employed in the development of the UHPC mixtures. A base mixture of UHPC without replacement of silica fume or sand was selected and a total of 24 trial mixtures of UHPC were prepared using different percentages of NP, FA, LSP, CKD, and PSS, partially replacing the silica fume and sand. Flow and 28-d compressive strength of each UHPC mixture were determined to finally select those mixtures, which satisfied the minimum flow and strength criteria of UHPC. The test results showed that the utilization of NP, FA, LSP, CKD, and PSS in production of UHPC is possible with acceptable flow and strength. A total of 10 UHPC mixtures were identified with flow and strength equal to or more than the minimum required.

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