Maleesee, Komsan

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Maleesee, Komsan
Alternative Name
Maleesee, K.
Maleesee, Komson
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Email
komsan.ma@kmitl.ac.th

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    Effects of Shrinkage Reducing Agent and Expansive Additive on Plastic Shrinkage of Mortar at Different Temperatures
    (2018-09-19)
    Treesuwan, Sarapon
    ;
    Maleesee, Komsan
    ;
    Date, Shigeyuki
    In the construction, it is inevitable to perform plaster work in hot weather which causes the dehydration and rapid shrinkage on the paste during the early age. This research shows the studies of reducing the plastic shrinkage of mortar during the early age with such additives as the Shrinkage Reducing Agent (SRA), the Expansive Additive (EX), and the Fly Ash (FA) in controlled temperatures at 30°C and 40°C, with relative humidity between 60% and 70% according to the ASTM C1579-06 standard, with the strain gauge installed at 0.5 cm.from the surface. The shrinkage rate was measured starting from the Initial Setting Time and every 10 minutes afterwards for 24 hours. The results show that high temperature effects the cracking and how to use different formulas of additive under different circumstances is considerably important. To use only one additive is not sufficient in high temperature. To use the SRA in addition to the EX enhances better expansion than to use only the EX. Moreover, it is recommended to pay close attention in adding large amount of the FA into mortar with the EX and SRA added which extremely enhances the expansion and potential cracking.
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    The contribution agriculture waste reinforcement to the floor topping of renovation building architectures: Compressive strength test by trial the percentage of the pseudostem of banana dried powder
    (2018-08-14)
    Subpa-Asa, Prang
    ;
    Maleesee, Komson
    ;
    Date, Shigeyuki
    ;
    Kasai, Tetsurou
    ;
    Phromsuwansiri, Nutchaphon
    The growing demand of construction around the world has led to an increased usage of concrete. However, convention concrete making materials are not entirely environmental friendly and this has enthused research on seeking greener alternative for concrete production. Agriculture industries are one of the major industries globally that harvested products such as food and biomass for organism around the world. After harvesting products, there are effluence of agriculture waste as left, straw and pseudostem. This research focusing on mechanical properties as compressive Strength Test of mortar cement adding with the pseudostem of banana dried powder (PBDP) by trial the percentage of PBDP and chemical properties as using scanning electron microscope (SEM). These findings indicate that 10% of PBDP replacement is the best ratio and element of PBDP which C was the most element in PBDP as 59.96% of mass and 71.49 % of atomic.
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    Item type:Publication,
    Effect of expansive additive and shrinkage reducing agent on plastic shrinkage of steam-cured mortar
    (2018-01-01)
    Treesuwan, Sarapon
    ;
    Maleesee, Komsan
    ;
    Date, Shigeyuki
    This research is part of the mortar’s plastic shrinkage study. Contents in this article is related to how the Expansive Additive (EX), Shrinkage Reducing Agent (SRA), and Fly Ash (FA) help to reduce and control the shrinkage and to compare the effectiveness of these substances used in the normal curing, i.e., at 30˚C and in the steam curing process by using the factorial design with 3 factors and to be divided into 2 levels. Factors to be studied are the amount of EX, SRA and FA replacement. The test of plastic shrinkage was conducted in accordance with the ASTM C1579-06 standard, placing the strain gauge 0.5 centimeters beneath the surface in the middle of the mold, recording the shrinkage rate starting from the initial setting time for 24 hours. The results showed that, in normal curing, the EX influences the expansion while, in steam curing, the EX and SRA significantly influences the expansion. To add the FA in high volume along with the EX significantly effects the expansion for both the normal and steam curing. Furthermore, the study model and equation for plastic shrinkage of mortar are presented in the form of factor proportion to be considered from the factorial design study basis.