Author: Matthew D. Loeffler
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 106
Book Description
Moisture Retention Tests and Agitation for Membrane Forming Curing Compounds for Portland Cement Concrete
Author: Matthew D. Loeffler
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 106
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 106
Book Description
Effectiveness of Membrane-Forming Curing Compounds for Curing Concrete
Author: Charles L. White
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 41
Book Description
A search was made for test methods to evaluate the effectiveness of curing concrete. Test methods that include water absorptivity (proposed ASTM test), capillary porosity, combined water, splitting tensile strength, and abrasion resistance were evaluated. Curing compounds having a wide range of water retention values and meeting the requirements of ASTM C 309-89 and CRD-C 300 were obtained for evaluation. A few curing compounds were prepared in the laboratory by diluting one of the CRD-C 300 curing compounds with the vehicle solvent furnished by the manufacturer to obtain curing compounds that would not meet the requirements of either specification. The water-absorptivity test and an abrasion test developed in the laboratory were used to determine the effectiveness of the different curing compounds for curing concrete. Curing compounds meeting the requirements of ASTM-C 309-89 were found to be as effective as curing compounds meeting the requirements of CRD-C 300 for curing concrete. Two of the curing compounds that did not meet the specification requirements were also found to be effective based on the water-absorptivity test method. The abrasion test shows promise as a test method for evaluating the effectiveness of curing and is less time consuming than the water-absorptivity test method. Keywords: Abrasion, Construction materials, Absorptivity, Membrane-forming curing compounds, Moisture retention, Portland cement concrete, Portland cement mortar. (JG).
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 41
Book Description
A search was made for test methods to evaluate the effectiveness of curing concrete. Test methods that include water absorptivity (proposed ASTM test), capillary porosity, combined water, splitting tensile strength, and abrasion resistance were evaluated. Curing compounds having a wide range of water retention values and meeting the requirements of ASTM C 309-89 and CRD-C 300 were obtained for evaluation. A few curing compounds were prepared in the laboratory by diluting one of the CRD-C 300 curing compounds with the vehicle solvent furnished by the manufacturer to obtain curing compounds that would not meet the requirements of either specification. The water-absorptivity test and an abrasion test developed in the laboratory were used to determine the effectiveness of the different curing compounds for curing concrete. Curing compounds meeting the requirements of ASTM-C 309-89 were found to be as effective as curing compounds meeting the requirements of CRD-C 300 for curing concrete. Two of the curing compounds that did not meet the specification requirements were also found to be effective based on the water-absorptivity test method. The abrasion test shows promise as a test method for evaluating the effectiveness of curing and is less time consuming than the water-absorptivity test method. Keywords: Abrasion, Construction materials, Absorptivity, Membrane-forming curing compounds, Moisture retention, Portland cement concrete, Portland cement mortar. (JG).
The Effectiveness of Texas Membrane Curing Compound Quality and Application Requirements
Author:
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 242
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 242
Book Description
Tests of Membrane-forming Compounds for Curing Concrete
Author: Waterways Experiment Station (U.S.)
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 82
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 82
Book Description
Curing Compounds for Portland Cement Concrete
Author: James H. Woodstrom
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 72
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 72
Book Description
Portland Cement Concrete Curing Compound Performance
Author: Robert Steffes
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 56
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 56
Book Description
Standard Test Method for Water Retention by Liquid Membrane-Forming Curing Compounds for Concrete
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Effects of Duration of Moist Curing on Concrete Made with Blended Cements Or Pozzolans
Author: William O. Tynes
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 50
Book Description
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 50
Book Description
The effectiveness of membrane curing compounds for portland cement concrete pavements
Author: Constantin Pechlivanidis
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 206
Book Description
Membrane curing compounds are widely used to cure concrete in highway construction. The function of these compounds is to form a membrane that helps retain moisture in the concrete slab, otherwise lost through evaporation. The amount of evaporation loss varies as a function of the environmental conditions and the temperature of the concrete mass during the curing period. This rpeort provides an evaluation of the performance of membrane curing compounds as related to concrete material properties such as tensile and flexural strength, stiffness, surface durability, and density. In addition to traditional testing methods, the non-destructive, in-situ, Spectral Analysis of Surface Waves method is also used to observe and measure material properties as a function of time. Testing can start at initial set or when the modulus of elasticity for concrete is about 10,000 psi.
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 206
Book Description
Membrane curing compounds are widely used to cure concrete in highway construction. The function of these compounds is to form a membrane that helps retain moisture in the concrete slab, otherwise lost through evaporation. The amount of evaporation loss varies as a function of the environmental conditions and the temperature of the concrete mass during the curing period. This rpeort provides an evaluation of the performance of membrane curing compounds as related to concrete material properties such as tensile and flexural strength, stiffness, surface durability, and density. In addition to traditional testing methods, the non-destructive, in-situ, Spectral Analysis of Surface Waves method is also used to observe and measure material properties as a function of time. Testing can start at initial set or when the modulus of elasticity for concrete is about 10,000 psi.
Study of Variables in Moisture Loss Testing of Membrane-forming Curing Compounds
Author:
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 162
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 162
Book Description