Book ReviewsConcrete alkali-aggregate reactions Proceedings of the 7th International Conference on alkali-agregate reactions, Ottawa, 1986 Editor: Grattan-BellewP. E. New Jersey, Noyes Publications, 1987. Hardback. pp. 520. 08155 11426. Price: $64.00.
نویسندگان
چکیده
منابع مشابه
Diagnosis and Control of Alkali - Aggregate Reactions
Aggregates containing certain constituents can react with alkali hydroxides in concrete. The reactivity is potentially harmful only when it produces significant expansion (Mather 1975). This alkali-aggregate reactivity (AAR) has two forms—alkali-silica reaction (ASR) and alkali-carbonate reaction (ACR, sometimes called alkali-carbonate rock reaction, or ACRR). ASR is more often a concern than A...
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Using a beam-gas arrangement, we have obtained the chemiluminescence spectra of alkali-halogen reactions at pressures less than I mtorr. The spectra in general are characterized by a broad molecular feature on which are superimposed sharp atomic alkali transitions. Under higher resolution (better than 5 A) the molecular feature consists of a single progression of regularly spaced peaks extendin...
متن کاملUniversalities in ultracold reactions of alkali-metal polar molecules
We consider ultracold collisions of ground-state heteronuclear alkali-metal dimers that are susceptible to four-center chemical reactions 2AB → A2 + B2 even at submicrokelvin temperatures. These reactions depend strongly on species, temperature, electric field, and confinement in an optical lattice. We calculate ab initio van der Waals coefficients for these interactions and use a quantum forma...
متن کاملProduct-state control of bi-alkali-metal chemical reactions
We consider ultracold, chemically reactive scattering collisions of the diatomic molecules KRb. When two such molecules collide in an ultracold gas, we find that they are energetically forbidden from reacting to form the trimer species K2Rb or Rb2K, and hence can only react via the bond-swapping reaction 2 KRb → K2 + Rb2. Moreover, the tiny energy released in this reaction can in principle be s...
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Molecular chemiluminescence spectra from selected alkali-halogen reactions are presented using a beam-gas arrangement operating with pressures between 10 -1 mtorr (single collision conditions) up to 10 mtorr in the reaction zone. Spectra are presented for the chemiluminescent reactions M2 + X 2 > M X * + MX, where M2 = K 2 , Na2 and X 2 = C12, Br2 ,12 . The MX* emitter is identified by comparis...
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ژورنال
عنوان ژورنال: Magazine of Concrete Research
سال: 1988
ISSN: 0024-9831,1751-763X
DOI: 10.1680/macr.1988.40.143.120