lowtemperature curing strength enhancement in cement

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Low-Temperature Curing Strength Enhancement in

The strength enhancement observed in the PLC cements is related to the cement hydration products formed in the presence of carbonates as a function of temperature. Keywords: Compressive strength; X-ray diffraction; heat release; limestone powder; low-temperature curing; thermodynamics.

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Low-temperature curing strength enhancement in cement ...

高达12%返现  Apr 28, 2017  A good starting point for an investigation into strength differences is to consider the inherent dependence of strength on porosity [14, 15] and investigate possible porosity differences with temperature, due to the reactions occurring and the phases being consumed and produced.Because mortars containing limestone powder exhibit this low temperature strength

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Low Temperature Curing Strength Enhancement in

May 01, 2017  In the present study, the relationship between heat release and compressive strength of mortars at batching/curing temperatures of 10 °C and 23 °C is investigated. For Portland-limestone cements (PLC) with limestone additions on the order of 10 %, a higher strength per unit heat release is obtained after only 7 d of curing in lime water.

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Low-Temperature Curing Strength Enhancement in

Apr 28, 2017  Low-Temperature Curing Strength Enhancement in Cement-Based Materials Containing Limestone Powder. Dale P Bentz Engineering Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Stop 8615, Gaithersburg, MD 20899-8615.

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Published in Materials and Structures ... - concrete.nist.gov

Low-Temperature Curing Strength Enhancement in Cement-Based Materials Containing Limestone Powder Dale P. Bentz1 Paul E. Stutzman1 Franco Zunino2,a 1Engineering Laboratory National Institute of Standards and Technology 100 Bureau Drive, Stop 8615 Gaithersburg, MD 20899-8615 E-mail: [email protected], [email protected]

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Low-temperature curing strength enhancement in cement ...

Low-temperature curing strength enhancement in cement-based materials containing limestone powder . ... limestone powder is also intriguing based on its influence on low-temperature curing. For example, previous results have indicated that the utilization of limestone powder to replace one quarter of the fly ash in a high volume fly ash mixture ...

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Low-Temperature Curing Strength Enhancement in Cement ...

cement-based materials containing limestone powder, after 7 d of curing, the strength achieved at 10 °C exceeds that obtained at 23 °C (see Figure 1 for two such examples from a recent study [8]) .

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Low-Temperature Curing Strength Enhancement in Cement ...

Aging and Curing Temperature Effects on Compressive Strength of Mortar Containing Lime Stone Quarry Dust and Industrial Granite Sludge In this study, the researchers investigated the potential use of locally available waste materials from the lime stone quarry and the granite industry as a partial replacement of cement.

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Low-temperature curing strength enhancement in cement ...

Low-temperature curing strength enhancement in cement-based materials containing limestone powder . ... limestone powder is also intriguing based on its influence on low-temperature curing. For example, previous results have indicated that the utilization of limestone powder to replace one quarter of the fly ash in a high volume fly ash mixture ...

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Low-temperature (−10 °C) curing of Portland cement paste ...

Ordinary Portland cement (CEM I 52.5 R) provided by Finnsementti, Finland, was used. The density, Blaine fineness, and median particle size (D 50) of cement are around 3100 kg/m 3, 400 m 2 /kg, and 8.5 μm, respectively. The chemical composition of OPC is given in Table 1.A commercial C–S–H seed admixture (X130-seeds®) was supplied by MBCC, Sweden, with a solid content of around 23.7% ...

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Low Temperature Curing of Metakaolin Concrete Journal of ...

Aug 08, 2009  During the first day of hydration, the concrete strength is substantially reduced especially at high MK content. However, the incorporation of up to 20% MK causes an enhancement in concrete strength beyond 7 days of curing. This increase could be up to 50% depending upon the age of curing and the MK content.

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Preparation of an Early Strengthening Agent for Concrete ...

To solve the common problems of concrete preparation in low-temperature environments, calcium formate (C 2 H 2 O 4 Ca), anhydrous sodium sulfate (Na 2 SO 4), triethanolamine (C 6 H 15 O 3 N), calcium bromide (CaBr 2), and triisopropanolamine (C 9 H 21 NO 3) are selected as early strength agents and mixed with C40 concrete in different dosages under low-temperature environments of 5

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Compressive Strength Gain Behavior and Prediction of ...

Mar 30, 2020  For cement-based materials, the curing temperature determines the strength gain rate and the value of compressive strength. In this paper, the 5% cement-stabilized macadam mixture is used. Three indoor controlled temperature curing and one outdoor natural curing scenarios are designed and implemented to study the strength development scenario law of compressive strength,

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Cement and Concrete Composites

Lightweight concrete Oil-well cement Hydrothermal curing Microstructure Hollow microspheres Thermal properties ABSTRACT Lightweight cement-based composites with high specic strength and low thermal conductivity are highly sought in the energy and construction industries. These characteristics are important in designing cement liners for high-

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Efficient Use of Graphene Oxide and Silica Fume in Cement ...

Oct 30, 2021  Figure 3 shows the flexural strength of the GO/SF cement composite specimens at seven days. The specimens are grouped according to the GO content into series G0, G3, G5, G7, and G9. In most series with low GO ratios, the general trend is that the increase in SF percentage increases the tensile strength enhancement up to a certain level.

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CompressiveStrengthGainBehaviorandPredictionof Cement ...

conducted tests of calcium sulphoaluminate cement at differentcuringtemperatures ... D.P.Bentz,P.E.Stutzman,andF.Zunino,“Low-temperature curing strength enhancement in cement-based materials containing limestone powder, ...

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Preparation and Properties of Low-Temperature Early ...

Mar 22, 2021  To solve the problem that the low temperature leads to the slow development of cement strength in deepwater cementing, we prepared low-temperature early strength material of nano-C-S-H gel seed with sodium silicate nonahydrate and calcium nitrate tetrahydrate as raw materials. The chemical structure and elemental composition of nanometer C-S-H gel seed were characterized by FT

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‪Franco Zunino‬ - ‪Google Scholar‬

Low-temperature curing strength enhancement in cement-based materials containing limestone powder DP Bentz, PE Stutzman, F Zunino Materials and structures 50 (3), 1-14 , 2017

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Investigation of the Relationship between Compressive ...

Nov 28, 2019  When concrete is used for construction in cold-temperature regions, cold-resistant accelerators based on calcium nitrite (Ca(NO 2) 2) and calcium nitrate (Ca(NO 3) 2) are added to prevent early freezing damage.Although cold-resistant accelerators increase the early compressive strength and prevent early freezing damage by promoting cement hydration, the strength enhancement effect

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Dale P. Bentz -Research and Publications - concrete.nist.gov

Bentz, D.P., and Hansen, K.K., "Preliminary Observations of Water Movement in Cement Pastes During Curing Using X-ray Absorption," Cement and Concrete Research, 30 (7), 1157-1168, 2000. pdf version Bentz, D.P., "Influence of Silica Fume on Diffusivity in Cement-Based Materials.

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Low-Temperature Curing Strength Enhancement in Cement ...

Aging and Curing Temperature Effects on Compressive Strength of Mortar Containing Lime Stone Quarry Dust and Industrial Granite Sludge In this study, the researchers investigated the potential use of locally available waste materials from the lime stone quarry and the granite industry as a partial replacement of cement.

Get Price

Low Temperature Curing of Metakaolin Concrete Journal of ...

Aug 08, 2009  During the first day of hydration, the concrete strength is substantially reduced especially at high MK content. However, the incorporation of up to 20% MK causes an enhancement in concrete strength beyond 7 days of curing. This increase could be up to 50% depending upon the age of curing and the MK content.

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Low Temperature Curing of Metakaolin Concrete

During the first day of hydration, the concrete strength is substantially reduced especially at high MK content. However, the incorporation of up to 20% MK causes an enhancement in concrete strength beyond 7 days of curing. This increase could be up to 50% depending upon the age of curing and the MK content. After 28 days of curing the relative ...

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Compressive strength of concrete (7 and 14 days of curing ...

Download scientific diagram Compressive strength of concrete (7 and 14 days of curing) as a function of substituting YPSC for cement. from publication: Study on the Preparation and Fracture ...

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Strength and durability performance of modified cement ...

Strength and durability performance of modified cement-based concrete incorporated immobilized bacteria November 2021 Environmental Science and Pollution Research

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CompressiveStrengthGainBehaviorandPredictionof Cement ...

conducted tests of calcium sulphoaluminate cement at differentcuringtemperatures ... D.P.Bentz,P.E.Stutzman,andF.Zunino,“Low-temperature curing strength enhancement in cement-based materials containing limestone powder, ...

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Solution calorimetry to assess effects of water-cement ...

Feb 01, 2021  Low-temperature curing strength enhancement in cement-based materials containing limestone powder Mater Struct , 50 ( 2017 ) , 10.1617/s11527-017-1042-6 Google Scholar

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Enhancement of dentin bond strength of resin cement using ...

For the dual-cure resin cement, either Panavia V5 or Panavia F2.0 were used with Panavia V5 Tooth Primer or ED Primer II. Resin coating does not always contribute to the enhancement of μTBS. The highest μTBS was obtained with the resin coating combination of Clearfil SE Bond 2 and Panavia V5, and cementation with Panavia F2.0, which was ...

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IJCI - Experimental Investigation of Self-Curing ...

In similar water to cement ratios, compared to the conditions with curing, the compression strength declines when no curing is applied. The decline becomes lower as more polymer is used. For more accurate scrutiny, the percentage of the strength reduction in the samples in the cases with and without curing are compared in figures 3 and 4 for ...

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Preparation of an Early Strengthening Agent for Concrete ...

To solve the common problems of concrete preparation in low-temperature environments, calcium formate (C 2 H 2 O 4 Ca), anhydrous sodium sulfate (Na 2 SO 4), triethanolamine (C 6 H 15 O 3 N), calcium bromide (CaBr 2), and triisopropanolamine (C 9 H 21 NO 3) are selected as early strength agents and mixed with C40 concrete in different dosages under low-temperature environments of 5

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concrete.nist.gov NIST

concrete.nist.gov NIST

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THE EFFECT OF GGBS ON THE TEMPERATURE AND STRENGTH ...

THE EFFECT OF GGBS ON THE TEMPERATURE AND STRENGTH DEVELOPMENT IN CONCRETE ELEMENTS UNDER LOW AMBIENT TEMPERATURES. Temperature matched curing (TMC), in which concrete specimens are subject to the same temperature history as concrete in the structure, has been recognised to be a useful method of assessing the in situ concrete strength prior to stripping or

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Preparation and Properties of Low-Temperature Early ...

Mar 22, 2021  To solve the problem that the low temperature leads to the slow development of cement strength in deepwater cementing, we prepared low-temperature early strength material of nano-C-S-H gel seed with sodium silicate nonahydrate and calcium nitrate tetrahydrate as raw materials. The chemical structure and elemental composition of nanometer C-S-H gel seed were characterized by FT

Get Price