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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
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      <title>SPECIAL TOPICS IN COCNRETE PLACEMENT. CONSISTENCY AND WORKABILITY OF FLOWING CONCRETE</title>
      <link>https://trid.trb.org/View/367283</link>
      <description><![CDATA[The K-slump tester was used to measure the consistency and workability of fresh concrete made with and without superplasticizer.  It was found that the tester was capable of measuring both properties in a satisfactory manner.]]></description>
      <pubDate>Thu, 30 Apr 1992 00:00:00 GMT</pubDate>
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      <title>FLOWING CONCRETE WITH SILICA. CAPILLARY SUCTION AND FROST RESISTANCE</title>
      <link>https://trid.trb.org/View/274240</link>
      <description><![CDATA[Several investigations have reported that the frost resistance of flowing concrete is low.  The improvements that can be achieved by air entraining admixtures and an elevated cement content (reduced water/cement ratio) are stated to be considerably lower than in the case of concrete of stiffer consistency.  This investigation has studied the capillary suction and frost resistance of flowing concrete in which 10% by weight of the cement has been replaced by silica.  Frost resistance was studied for two different degrees of water absorption and by two methods.  The concrete was compared with silica concrete of stiff consistency and with concrete without silica.  The investigation was carried out in the laboratory under controlled curing conditions.  The results showed that admixture of silica refines the capillary structure and improves the frost resistance of both flowing concrete and concrete of stiffer consistency.  The frost resistance is satisfactory even at low air contents and high degrees of pore saturation.  Admixture of silica into flowing concrete may be an alternative to entrainment of air to provide protection against frost and de-icing salts.  This method is less sensitive to segregation and degradation of the protective system in connection with mixing and handling. (Author/TRRL)]]></description>
      <pubDate>Tue, 31 Mar 1987 00:00:00 GMT</pubDate>
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      <title>SUPERPLASTICIZED FLOWING CONCRETE STRENGTH AND DEFORMATION PROPERTIES</title>
      <link>https://trid.trb.org/View/217185</link>
      <description><![CDATA[This paper investigates superplasticized high-workability concrete.  The properties described are those of strictly flowing concrete in the hardened state and include: compressive strength, drying shrinkage, thermal expansion, elastic deformation, creep, creep recovery and post-creep- recovery elastic deformation and strength.  It is shown that flowing concretes made with superplasticizers of categories a and b exhibit similar properties.  In comparison with the corresponding normal concrete, flowing concrete, for a given strength, is likely to require a slightly higher cement content, it exhibits higher shrinkage, slightly higher elastic modulus and lower creep, whilst its creep recovery and post-creep-recovery elastic deformation and strength properties are generally comparable.  With regard to the various mix, curing and testing parameters considered, both normal and flowing concretes appear to respond in a similar manner for the properties studied.  (Author/TRRL)]]></description>
      <pubDate>Sat, 30 Nov 1985 00:00:00 GMT</pubDate>
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