ASTM C289 PDF
This standard is issued under the fixed designation C ; the number immediately 1 This test method is under the jurisdiction of ASTM Committee C09 on. C Standard Test Method for Potential Alkali-Silica Reactivity of Aggregates (Chemical Method) ASTM C Standard Format, Pages, Price. PDF. Problems With ASTM C ▫ Does not predict the late-slow silicate reactivity in concrete that may result with aggregates containing strained or micro-.
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ASTM C – 07 Standard Test Method for Potential Alkali-Silica Reactivity of Aggregates (Chemical Method) - Download as PDF File .pdf), Text File .txt) or. ASTM C [ Withdrawn ]. Standard Test Method for standard by ASTM International, 11/01/ PDF;; Immediate download; $; Add to Cart. ASTM and Accelerated Laboratory Tests for ASR. [ASTM] C has been performed for decades and has always shown the aggregate to.
C 07 Rc values indicate the potential reactivity is marginal.
Exami- the aggregate. The results of this test do not predict the nations of the aggregate in accordance with Guide C, can late-slow silica-silicate reactivity in concrete that may result be used to determine the presence of minerals of this type.
Reactivity of Aggregates with Cement Alkalies: Chemical Processes in 6 Mielenz, R. Concrete Inst. Highway Research Board, , p.
Committee C09 has identified the location of selected changes to this test method since the last issue, C 03, that may impact the use of this test method. Approved November 1, ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Free Astm C289 Pdf
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Jump to Page. Search inside document. C 07 Standard Test Method for Potential Alkali-Silica Reactivity of Aggregates Chemical Method 1 This standard is issued under the fixed designation C; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
Unless otherwise indicated, all reagents shall by a change in the alkalinity of the sodium hydroxide solution conform to Reagent Chemicals, American Chemical Society NOTE 1All dimensions are in mm. C 07 FIG. Approved November 1, 1 Reorganized the test method, moving old Sections into new Section 8.
Madeleyn Morales. Muhammad Zaini Gani. Anonymous IQnpn1sj. Emre Tekkol. Victor Manuel. Fiona Keir.
Vivek Dhiman. Ahmad Radhya Dionanda. Anonymous eK8Yj2L3x. Eaton Filtration. Filtration Equipment-Water Filtration Systems-web. Kevin Steinbach. Hector Alejandro Melin Contreras. Carlos Pernia.
Eric Ruiz Lopez. Batang Jay-ar. More From Melinceanu Adrian. Melinceanu Adrian. Jorge Luis Arevalo Lopez.
Sandro Mendes. Kali Prasad. Rhoteram Vikku. Andrew Pi. Popular in Filtration. Elena Reyes. Ghada Bargui. Cami G. John Rodrigo. Nasir Ahmed. Typical reaction products found in samples of the mortar bars made using expanded glass: SEM micrographs of mortar bars with perlite a not exposed to the alkaline solution and b after the accelerated test.
The perlite granule from the non-exposed prism has with calcium at the expense of silicon is typical when clean and smooth internal walls, without any visible reaction compared to the primary material composition. In Fig. Some of these crystals appear to be inter- granules from a cement prism which was not exposed to the locked with one other, and to be growing in the plane of the mortar bar test, whereas Fig.
Typical reaction products found in samples of the mortar bars made using perlite: EDX analysis of the chemical compo- partly in the form of massive calcium — alkali — silica gel and sition of these crystals indicated a decrease in the content of partly in the form of various crystalline products. These by a factor of 6 to 7. These needles can be a type of products are generated on the original glassy material, and spongy gel, or more probably, products which have devel- also partly replace it, bringing about the rupture or decay of oped on the surface of the perlite during the reaction.
They certainly could Unfortunately, no final definition can be made, because have a deleterious effect on the mechanical properties of the products were very fine and grown out of the primary concrete made from such LWAs, and might also affect the material, making semiquantitative analysis unreliable.
The results of porous texture of the aggregate, which can accommodate the the EDX analysis indicate a significant reduction in the gel and other reaction products.
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Surprisingly, the expansion silicon content and an increase in the calcium and alkali of prisms made using expanded glass was comparable to potassium content.
Chemical analysis of obtained according to ASTM C , the expanded glass their composition showed an increase in calcium content at would be much more reactive than the perlite. The reason the expense of silicon and aluminium.
Sulphur is also for this probably lies in the difference in the pore structure present. Perlite has a more uniform, fine open Fig. However, glass is, by contrast, rougher and a little less connected a the frequency of such occurrences is relatively low. Similar as in the case of expanded glass, enrichment with 6a and 8a.
The pore system of the expanded glass can calcium and alkalis at the expense of silicon has been found therefore accumulate more gel and other reaction products in perlite after the accelerated mortar bar test.
The results of the investigations of the LWAs showed that, although their mineral composition had a very impor- 4. Discussion tant, and thus critical, influence on the course and extent of the ASR, other parameters, such as water absorption and The results of tests of the ASR of the LWAs according specific surface area as indirect indicators of porosity , to the rapid chemical method defined in ASTM C could play some less important role in the resistance to ASR showed that the expanded glass and perlite were highly of cement composites made from LWAs.
Although both of these types of glassy aggregate have a similar SiO2 content, the expanded glass exhibited a much higher reactivity according to ASTM C The 5. Conclusions most likely reason for this is its alkali content, which is about three times greater than that of the perlite. It may The results of the study of the possible danger of ASR in therefore be assumed that this increased alkali content cement composites made using LWAs have shown that the provides an additional inner source of alkali which investigated expanded vermiculite and expanded clay did promotes ASR although the results of mortar bar tests not exhibit any potential ASR.
On the other hand, the two according to ASTM C showed that none of the glassy aggregates, expanded glass and perlite, showed high aggregates used caused either expansion or cracks in reactivity according to the ASTM C test. The results of mortar bars.
However, in the case determining the extent and consequences of ASR in the case of the two glassy LWAs the expanded glass and the perlite , of such aggregates, although it is not possible to quantify the the situation is alarming.
A strong reaction has undoubtedly reaction. Zatler, E. Mali, Alkali — aggregate reaction in lightweight concrete, in: Idorn, S.
Rostam Eds. For aggregates containing kalis in Concrete Research and Practice—Proceedings, Danish Con- glass, it would be necessary to determine suitable expansion crete Association, Copenhagen, , pp. De Ceukelaire, Alkali — silica reaction in a lightweight concrete has already been similarly proposed for slowly reactive bridge, Proc. Crumpton, Lightweight aggregate concrete sometimes grows. Collins, P.
Bareham, Alkali — silica reaction: Suppression of ex- of these materials. Figg, Reaction between cement and artificial glass in concrete, Proc. Acknowledgements  A. Jensen, S. Chatterji, P.
Christensen, N. Batch Weights. C PDF Role of test method in detection of alkali—silica reactivity of PDF The risk of alkali—silica reaction of concrete aggregates in many parts of the Concrete Degradation by Alkali-Silica Reaction. Each of these ASTM C Paul, MN, May 26, Gess Labrador.
Since, unlikely in the USA, in Brazil, almost every single cement readily available in the market contains different contents of blast furnace slag, it is surprising that the use of supplementary cementitious materials and thei.
A value of Coulombs to 56 days has been shown to be appropriate for most cases with similar exposure conditions of exposure classes III and IV of NB. Allow phthalein end point. Victor Manuel. The smallest expansion was observed in the case of a mortar bar made using expanded vermiculite, showing the the prisms made from expanded glass 0.
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